Personal Ontologies


Wolfgang Fahl

⚠️ LLM-generated content notice: Parts of this page may have been created or edited with the assistance of a large language model (LLM). The prompts that have been used might be on the page itself, the discussion page or in straight forward cases the prompt was just "Write a mediawiki page on X" with X being the page name. While the content has been reviewed it might still not be accurate or error-free.

Prompts

Prompts[edit]

YAML creation[edit]

give a yaml file with the symbols and their meanings

and pasting from the LinkedIn webpage

YAML creation[edit]

give a yaml file with the symbols and their meanings

and pasting from the LinkedIn webpage

Gemini 3 Pro Preview[edit]

Here is the YAML file representing Martijn Aslander’s Personal Ontology based on the provided text. 

source: "Personal Ontologies: The Future of Information Management by Martijn Aslander"
description: "A mapping of emojis to specific knowledge management concepts."

ontology:
  people:
    - symbol: "πŸ‘₯"
      meaning: "People I have met"
    - symbol: "πŸ—£οΈ"
      meaning: "People I have not met yet"
    - symbol: "⚱️"
      meaning: "Prefix for people who have passed away"

  organizations:
    - symbol: "πŸ›—"
      meaning: "Organizations (General)"
    - symbol: "πŸ›— πŸ›©οΈ"
      meaning: "Airlines or specific organizations of interest"
    - symbol: "πŸ›— πŸŽ’"
      meaning: "Brands followed closely"

  locations:
    - symbol: "πŸ‡¨πŸ‡­"
      meaning: "Countries"
    - symbol: "πŸ›€οΈ"
      meaning: "Destinations (regions, cities, villages, natural areas)"
    - symbol: "🏣"
      meaning: "Buildings"
    - symbol: "🏑"
      meaning: "Houses (lived in or visited)"
    - symbol: "πŸš‰"
      meaning: "Stations"
    - symbol: "✈️"
      meaning: "Airports"
    - symbol: "🏰"
      meaning: "Castles"

  activities_and_events:
    - symbol: "πŸŽͺ"
      meaning: "General activities and events"
    - symbol: "πŸŽͺ🎹"
      meaning: "Concerts"
    - symbol: "🍿"
      meaning: "Cinema outings / Movies"
    - symbol: "πŸ—ΊοΈ"
      meaning: "Outings (with partner, family, or work)"
    - symbol: "πŸ‘£"
      meaning: "Walks"
    - symbol: "πŸ›£οΈ"
      meaning: "Road trips"
    - symbol: "πŸ›ŽοΈ"
      meaning: "Hotel stays"
    - symbol: "πŸš•"
      meaning: "Taxi rides"
    - symbol: "πŸ›«"
      meaning: "Flights"
    - symbol: "🍽️"
      meaning: "Dining out"
    - symbol: "πŸ₯‘"
      meaning: "Takeout"
    - symbol: "πŸ’"
      meaning: "Weddings"
    - symbol: "⚰️"
      meaning: "Funerals"
    - symbol: "πŸ™Œ"
      meaning: "Significant life events / Unique experiences"
    - symbol: "🎀"
      meaning: "Public performances / Speaking engagements"
    - symbol: "πŸ‘"
      meaning: "Feedback received on talks"

  tasks:
    - symbol: "πŸ”©"
      meaning: "Small tasks"
    - symbol: "πŸ‘¨πŸŒΎ"
      meaning: "Gardening or harvesting tasks"

  sentiment_and_reflection:
    - symbol: "🌈"
      meaning: "Nice things / Joyful moments"
    - symbol: "πŸŒͺ️"
      meaning: "Unpleasant things / Bad moments"
    - symbol: "πŸ‘"
      meaning: "Compliments received"
    - symbol: "πŸ™"
      meaning: "Thank-yous received"
    - symbol: "πŸ€”"
      meaning: "Reflections"
    - symbol: "✨"
      meaning: "Insights"
    - symbol: "πŸ’­"
      meaning: "Dreams"
    - symbol: "πŸ”¬"
      meaning: "Things I want to understand / Curiosity"

  communication_and_interaction:
    - symbol: "πŸ’¬"
      meaning: "Reach-In (Inbound questions)"
    - symbol: "πŸ™‹β™‚οΈ"
      meaning: "Requests for help"
    - symbol: "🀝"
      meaning: "Reach-Out (Outbound connections)"
    - symbol: "☎️"
      meaning: "Phone calls"
    - symbol: "🫢"
      meaning: "Connection messages (connecting two other people)"
    - symbol: "πŸ”—"
      meaning: "LinkedIn traction posts (also used for URLs)"
    - symbol: "πŸ“…"
      meaning: "Meetings"

  projects_and_opportunities:
    - symbol: "πŸ”‘"
      meaning: "Opportunities"
    - symbol: "βš—οΈ"
      meaning: "Projects"
    - symbol: "πŸ“‡"
      meaning: "Maps of Content (MOCs) / Indexes"

  media_and_content:
    - symbol: "πŸŽ“"
      meaning: "Research pages / Topics to learn"
    - symbol: "βœ‚οΈ"
      meaning: "Web articles / Clippings"
    - symbol: "πŸ“Ί"
      meaning: "Films and Series"
    - symbol: "πŸ’Ώ"
      meaning: "Music albums"
    - symbol: "🎡"
      meaning: "Lyrics and individual songs"
    - symbol: "🎹"
      meaning: "Artists / Musicians"
    - symbol: "πŸ—ž"
      meaning: "Newspapers"
    - symbol: "πŸ“—"
      meaning: "Books"
    - symbol: "πŸ“™"
      meaning: "Children’s books"
    - symbol: "πŸ“’"
      meaning: "Comic books"
    - symbol: "πŸ“—πŸ“–"
      meaning: "Books written by the user"
    - symbol: "✍️✍️"
      meaning: "Manuscripts being reviewed or worked on"
    - symbol: "✍️"
      meaning: "Articles working on (Drafts)"
    - symbol: "βœ’οΈ"
      meaning: "Published articles"
    - symbol: "πŸŽ™"
      meaning: "Podcasts recorded"
    - symbol: "πŸ–‹"
      meaning: "Interviews conducted"
    - symbol: "πŸ“š"
      meaning: "Concepts and Terms"
    - symbol: "⛬"
      meaning: "Historical events"

  possessions_and_purchases:
    - symbol: "πŸ›’"
      meaning: "Purchases (General)"
    - symbol: "πŸ›’πŸ“—"
      meaning: "Book purchases"
    - symbol: "πŸ“¦"
      meaning: "Possessions (General)"
    - symbol: "πŸ‘•"
      meaning: "Clothing"
    - symbol: "πŸŽ’"
      meaning: "Bags"
    - symbol: "⛺️"
      meaning: "Camping gear"
    - symbol: "πŸ—œ"
      meaning: "Tools (Clamps)"
    - symbol: "πŸ› "
      meaning: "Tools (General)"
    - symbol: "πŸͺš"
      meaning: "Tools (Saws)"
    - symbol: "⌨️"
      meaning: "Keyboards / Tech hardware"
    - symbol: "πŸͺ‘"
      meaning: "Furniture"
    - symbol: "πŸ–ΌοΈ"
      meaning: "Art / Decor"

  tech_and_admin:
    - symbol: "πŸ› οΈ"
      meaning: "Software"
    - symbol: "πŸ”Œ"
      meaning: "Software plugins"
    - symbol: "🎟️"
      meaning: "Subscriptions and Accounts"
    - symbol: "πŸ”—"
      meaning: "URLs and Hosting (also used for LinkedIn traction)"

  food_nature_games:
    - symbol: "πŸ₯—"
      meaning: "Dishes and recipes"
    - symbol: "🍷"
      meaning: "Wine"
    - symbol: "🍻"
      meaning: "Beer"
    - symbol: "πŸ•ΉοΈ"
      meaning: "Computer games"
    - symbol: "🎲"
      meaning: "Board games"
    - symbol: "🌳"
      meaning: "Trees"
    - symbol: "🌱"
      meaning: "Plants"

Claude Sonnet 4.5[edit]

Here's a YAML file documenting Martijn Aslander's personal knowledge management symbols:

notes: 

 - "Emoji help visual recognition faster than text"
 - "ISO 8601 date format enables chronological sorting"
 - "Templates automate metadata entry"
 - "Dataview queries create dynamic overviews"
 - "~15 minutes daily maintenance for 20-40 items"
 - "System evolved over 20 years of experimentation"

ontology:
  name: "Martijn Aslander's Personal Ontology"
  tool: "Obsidian"
  date_format: "ISO 8601 (YYYY-MM-DD)"
  
  symbols:
    
    # PEOPLE
    people:
      met: "πŸ‘₯"
      description_met: "People I've met"
      not_met: "πŸ—£οΈ"
      description_not_met: "People I haven't met yet"
      deceased: "⚱️"
      description_deceased: "People who have passed away (e.g., ⚱️πŸ‘₯ Jan Janssen)"
    
    # ORGANIZATIONS
    organizations:
      general: "πŸ›—"
      description_general: "Organizations (elevator symbol - many people)"
      aviation: "πŸ›—πŸ›©οΈ"
      description_aviation: "Airlines (e.g., πŸ›—πŸ›©οΈ KLM)"
      brands: "πŸ›—πŸŽ’"
      description_brands: "Brands followed closely (e.g., πŸ›—πŸŽ’ Tom Bihn)"
    
    # LOCATIONS
    locations:
      countries: "πŸ‡¨πŸ‡­"
      description_countries: "Countries (using flag emojis)"
      destinations: "πŸ›€οΈ"
      description_destinations: "Destinations - regions, cities, villages, natural areas"
      buildings: "🏣"
      description_buildings: "Buildings - places you can enter"
      houses: "🏑"
      description_houses: "Houses - homes lived in or visited"
      stations: "πŸš‰"
      description_stations: "Train/metro stations"
      airports: "✈️"
      description_airports: "Airports"
      castles: "🏰"
      description_castles: "Castles and historical buildings"
    
    # ACTIVITIES & EVENTS
    activities:
      events: "πŸŽͺ"
      description_events: "Events (e.g., πŸŽͺ 2025-01-11 mi The Hague – Jan Janssen's Birthday)"
      concerts: "πŸŽͺ🎹"
      description_concerts: "Concerts (e.g., πŸŽͺ🎹 2022-07-07 – Rolling Stones Concert)"
      cinema: "🍿"
      description_cinema: "Cinema outings (e.g., 🍿 Cinema 2023-08-12 mi Oppenheimer)"
      speaking: "🎀"
      description_speaking: "Public performances and speaking engagements"
      outings: "πŸ—ΊοΈ"
      description_outings: "Outings with partner, family, or for work"
      walks: "πŸ‘£"
      description_walks: "Walking routes and hikes"
      road_trips: "πŸ›£οΈ"
      description_road_trips: "Road trips and adventures"
      hotels: "πŸ›ŽοΈ"
      description_hotels: "Hotel stays"
      taxis: "πŸš•"
      description_taxis: "Taxi rides"
      flights: "πŸ›«"
      description_flights: "Flights (with full airport and flight details)"
      dining: "🍽️"
      description_dining: "Dining out experiences"
      takeout: "πŸ₯‘"
      description_takeout: "Takeout meals"
      weddings: "πŸ’"
      description_weddings: "Wedding ceremonies"
      funerals: "⚰️"
      description_funerals: "Funeral services"
      life_events: "πŸ™Œ"
      description_life_events: "Significant life events and unique experiences"
    
    # PERSONAL REFLECTIONS
    personal:
      nice_things: "🌈"
      description_nice_things: "Nice things that happened"
      unpleasant: "πŸŒͺ️"
      description_unpleasant: "Unpleasant things (for reflection)"
      compliments: "πŸ‘"
      description_compliments: "Compliments received"
      gratitude: "πŸ™"
      description_gratitude: "Thank-yous from others"
      reflections: "πŸ€”"
      description_reflections: "Personal reflections and thoughts"
      insights: "✨"
      description_insights: "Insights and realizations"
      dreams: "πŸ’­"
      description_dreams: "Dreams to document and analyze"
    
    # WORK & COMMUNICATION
    work:
      reach_in: "πŸ’¬"
      description_reach_in: "Reach-in - incoming questions or messages"
      help_requests: "πŸ™‹β™‚οΈ"
      description_help_requests: "Requests for help"
      reach_out: "🀝"
      description_reach_out: "Reach-out - outgoing messages to others"
      phone_calls: "☎️"
      description_phone_calls: "Phone calls and discussions"
      connections: "🫢"
      description_connections: "Connection messages - introducing people"
      linkedin: "πŸ”—"
      description_linkedin: "LinkedIn traction posts"
      meetings: "πŸ“…"
      description_meetings: "Meetings and formal encounters"
      opportunities: "πŸ”‘"
      description_opportunities: "Opportunities identified"
    
    # PROJECTS
    projects:
      project: "βš—οΈ"
      description_project: "Projects"
      moc: "πŸ“‡"
      description_moc: "Map of Content (MOC) - overview pages"
    
    # CONTENT & RESEARCH
    content:
      research: "πŸŽ“"
      description_research: "Research pages on specific topics"
      clippings: "βœ‚οΈ"
      description_clippings: "Web articles clipped and saved"
      video: "πŸ“Ί"
      description_video: "Films and series"
      albums: "πŸ’Ώ"
      description_albums: "Music albums"
      songs: "🎡"
      description_songs: "Individual songs and lyrics"
      artists: "🎹"
      description_artists: "Musical artists"
      newspapers: "πŸ—ž"
      description_newspapers: "Newspaper subscriptions"
      books: "πŸ“—"
      description_books: "Books (general)"
      childrens_books: "πŸ“™"
      description_childrens_books: "Children's books"
      comics: "πŸ“’"
      description_comics: "Comic books"
      authored_books: "πŸ“—πŸ“–"
      description_authored_books: "Books written by author"
      manuscripts: "✍️✍️"
      description_manuscripts: "Manuscripts being reviewed or written"
      drafts: "✍️"
      description_drafts: "Article drafts in progress"
      articles: "βœ’οΈ"
      description_articles: "Published articles"
      podcasts: "πŸŽ™"
      description_podcasts: "Podcast recordings"
      interviews: "πŸ–‹"
      description_interviews: "Interviews conducted"
    
    # TASKS
    tasks:
      small_tasks: "πŸ”©"
      description_small_tasks: "Small maintenance tasks"
      garden_tasks: "πŸ‘¨β€πŸŒΎ"
      description_garden_tasks: "Garden and farming tasks"
    
    # LEARNING
    learning:
      questions: "πŸ”¬"
      description_questions: "Things I want to understand"
      concepts: "πŸ“š"
      description_concepts: "Concepts and terms to learn"
    
    # POSSESSIONS
    possessions:
      purchases: "πŸ›’"
      description_purchases: "Purchases over €20"
      book_purchases: "πŸ›’πŸ“—"
      description_book_purchases: "Book purchases"
      items: "πŸ“¦"
      description_items: "Possessions and belongings"
      bags: "πŸ“¦πŸŽ’"
      description_bags: "Bags (e.g., πŸ“¦πŸŽ’ Tom Bihn – Synik 30)"
      software: "πŸ› οΈ"
      description_software: "Software applications"
      plugins: "πŸ”Œ"
      description_plugins: "Software plugins (e.g., πŸ”Œ Obsidian – Dataview plugin)"
      clothing: "πŸ‘•"
      description_clothing: "Clothing items"
      camping: "⛺️"
      description_camping: "Camping equipment"
      tools: "πŸ—œ"
      description_tools: "Tools and equipment"
      saws: "πŸͺš"
      description_saws: "Cutting tools"
      keyboards: "⌨️"
      description_keyboards: "Computer keyboards"
      furniture: "πŸͺ‘"
      description_furniture: "Furniture pieces"
      art: "πŸ–ΌοΈ"
      description_art: "Pictures and frames"
    
    # FOOD & DRINK
    food:
      recipes: "πŸ₯—"
      description_recipes: "Dishes and recipes"
      wine: "🍷"
      description_wine: "Wine selections"
      beer: "🍻"
      description_beer: "Beer varieties"
    
    # ENTERTAINMENT
    entertainment:
      computer_games: "πŸ•ΉοΈ"
      description_computer_games: "Computer games"
      board_games: "🎲"
      description_board_games: "Board games"
    
    # ADMINISTRATIVE
    administrative:
      subscriptions: "🎟️"
      description_subscriptions: "Subscriptions and accounts"
      urls: "πŸ”—"
      description_urls: "URLs and hosting domains"
    
    # NATURE
    nature:
      trees: "🌳"
      description_trees: "Trees in garden"
      plants: "🌱"
      description_plants: "Plants in garden"
    
    # HISTORICAL
    historical:
      events: "⛬"
      description_events: "Historical events to learn about"
    
    # ORGANIZATIONAL
    organizational:
      inbox: "πŸ“₯"
      description_inbox: "Quick thoughts and tasks inbox"
      unprocessed: "⬆️"
      description_unprocessed: "Unprocessed items needing action"

  # TEMPLATE METADATA FIELDS
  metadata_fields:
    - status: "Status: open/closed"
    - action: "Action: call/check/buy/ping/write/read"
    - rating: "Rating: importance/urgency level"
    - date: "Date: ISO 8601 format"
    - location: "Location: where it occurred"
    - people: "People: who was involved"
    - project: "Project: related project"
    - organization: "Organization: related organization"
    - cost: "Cost: financial information"
    - time_of_day: "Time: morning (mi), afternoon, evening"

  # NAMING CONVENTIONS
  naming_patterns:
    dated_activity: "emoji date time location – description (e.g., πŸŽͺ 2025-01-11 mi The Hague – Birthday)"
    person: "emoji Name (e.g., πŸ‘₯ Jan Janssen)"
    organization: "emoji Name (e.g., πŸ›— AFAS)"
    location: "emoji Name (e.g., 🏰 Castle Name)"
    book: "emoji Title (e.g., πŸ“— The Invention of Nature)"
    possession: "emoji Brand – Model (e.g., πŸ“¦πŸŽ’ Tom Bihn – Synik 30)"

Grok4[edit]

ontology:
  people:
    πŸ‘₯: People I've met (e.g., πŸ‘₯ Jan Janssen)
    πŸ—£οΈ: People I haven't met yet (e.g., πŸ—£οΈ Adam Grant)
    ⚱️: Prefix for people who have passed away (e.g., ⚱️πŸ‘₯ Jan Janssen)
  organizations:
    πŸ›—: Organizations (e.g., πŸ›— AFAS)
    πŸ›— πŸ›©οΈ: Organizations with special interest, like airlines (e.g., πŸ›— πŸ›©οΈ KLM)
    πŸ›— πŸŽ’: Organizations with special interest, like brands (e.g., πŸ›— πŸŽ’ Tom Bihn)
  locations:
    πŸ‡¨πŸ‡­: Countries (e.g., πŸ‡¨πŸ‡­ Switzerland)
    πŸ›€οΈ: Destinations (regions, cities, villages, natural areas)
    🏣: Buildings
    🏑: Houses (homes lived in or visited)
    πŸš‰: Stations
    ✈️: Airports
    🏰: Castles
  activities_events:
    πŸŽͺ: Events (e.g., πŸŽͺ 2025-01-11 mi The Hague – Jan Janssen’s Birthday)
    πŸŽͺ🎹: Concerts (e.g., πŸŽͺ🎹 2022-07-07 – Rolling Stones Concert Amsterdam Arena)
    🍿: Cinema outings (e.g., 🍿 Cinema 2023-08-12 mi Oppenheimer)
    🎀: Public performances (e.g., 🎀 2025-01-09 mi Erasmus University – Students International Business)
    πŸ‘: Talk feedback (e.g., πŸ‘ 2025-01-11 Jan Janssen – in response to talk at Raad van State)
    πŸ—ΊοΈ: Outings (e.g., πŸ—ΊοΈ 2022-12-18 Outing Muiderslot)
    πŸ‘£: Walks (e.g., πŸ‘£ 2024-10-27 mi Rozendaalse Veld and Beekhuizense Bos – with Mark)
    πŸ›£οΈ: Road trips (e.g., πŸ›£οΈ 2024-10-03 Road trip to Elp)
    πŸ›ŽοΈ: Hotel stays (e.g., πŸ›ŽοΈ 2023-11-14 MΓΆvenpick Karachi)
    πŸš•: Taxi rides (e.g., πŸš• 2022-11-25 Utrecht – Haarlem)
    πŸ›«: Flights (e.g., πŸ›« 2024-02-20 Flight xxx 06:40 to Lisbon from Schiphol)
    🍽️: Dining out (e.g., 🍽️ 2023-05-03 Golden Bull – Maarten van den Berg)
    πŸ₯‘: Takeout (e.g., πŸ₯‘ 2024-12-06 Erawan)
    πŸ’: Weddings (e.g., πŸ’ 2025-05-01 Haarlem – Jan Jansen and Petra Bakker)
    ⚰️: Funerals (e.g., ⚰️ 2022-07-08 Funeral of Jan de Vries)
    πŸ™Œ: Significant life events (e.g., πŸ™Œ 2022-08-14 Skydiving with the commandos)
    πŸ”©: Small tasks (e.g., πŸ”© 2025-01-03 Task – Tidy cables under the bed)
    πŸ‘¨πŸŒΎ: Gardening tasks (e.g., πŸ‘¨πŸŒΎ 2024-10-06 Harvest sweet potatoes)
    πŸ”©πŸ‘¨πŸŒΎ: Combined small/gardening tasks (e.g., πŸ”©πŸ‘¨πŸŒΎ 2024-12-29 Task – Remove compost bin)
  interpretations:
    🌈: Nice things (e.g., 🌈 2025-01-11 I ran into Jan Janssen spontaneously after years)
    πŸŒͺ️: Unpleasant things (e.g., πŸŒͺ️ 2025-01-02 I had a terrible night because of a crying cat)
    πŸ‘: Compliments (e.g., πŸ‘ 2025-01-11 – From my partner about my writing productivity this week)
    πŸ™: Thank-yous (e.g., πŸ™ 2025-01-11 – From Genieke Hertoghs for promoting her book)
    πŸ€”: Reflections (e.g., πŸ€” 2025-01-11 Is the ontology post getting too long?)
    ✨: Insights (e.g., ✨ 2025-01-11 Writing about my ontology is helping me clarify the bigger picture)
    πŸ’­: Dreams (e.g., πŸ’­ 2025-01-14 I dreamed I visited an underwater cave)
  work_related:
    πŸ’¬: Reach-in (e.g., πŸ’¬ 2025-01-03 – Jan Janssen about dining tips in Haarlem)
    πŸ™‹β€β™‚οΈ: Requests for help (e.g., πŸ™‹β€β™‚οΈ 2024-10-25 – Jan Janssen about tips for getting his book into the library)
    🀝: Reach-out (e.g., 🀝 2024-11-13 – Eppo van Nispen about the upcoming PKM Summit)
    ☎️: Phone calls (e.g., ☎️ 2025-01-09 Menno Spaan – About the Digital Fitness Academy course)
    🫢: Connection messages (e.g., 🫢 2025-01-06 Alja and Marcel should meet up)
    πŸ”—: LinkedIn traction (e.g., πŸ”— 2024-11-21 LinkedIn traction post about information literacy)
    πŸ“…: Meetings (e.g., πŸ“… 2025-01-09 morning Maeva – Thijs about hosting and domains)
    πŸ”‘: Opportunities (e.g., πŸ”‘ 2025-01-16 – Now that Jan Janssen has this job, he can help with the Month of Digital Fitness)
    βš—οΈ: Projects (e.g., βš—οΈ PKM Summit 2025)
    πŸ“‡: Maps of Content (MOC) (e.g., πŸ“‡ MOC – PKM Summit)
  inspiration_research:
    πŸŽ“: Research pages (e.g., πŸŽ“ Coffee or πŸŽ“ Sleep)
    βœ‚οΈ: Web articles (e.g., βœ‚οΈ Scientists Discovered How to Control the Casimir Effectβ€”and Supercharge Tiny Machines)
    πŸ“Ί: Films and series (e.g., πŸ“Ί Drops of God)
    πŸ’Ώ: Albums (e.g., πŸ’Ώ Nothing Like the Sun)
    🎡: Lyrics and songs (e.g., 🎡 Lyrics Nature Boy – Nat King Cole)
    🎹: Artists (e.g., 🎹 The Rolling Stones)
    πŸ—ž: Newspapers (e.g., πŸ—ž The Guardian)
    πŸ“—: Books (e.g., πŸ“— The Invention of Nature)
    πŸ“™: Children’s books (e.g., πŸ“™ Oh, How Beautiful is Panama)
    πŸ“’: Comic books (e.g., πŸ“’ Redbeard – The Broken Compass)
    πŸ“—πŸ“–: Books I’ve written (e.g., πŸ“—πŸ“– Easycratie)
    ✍️✍️: Manuscripts reviewing/working on (e.g., ✍️✍️ How to Build an Information Organization)
    ✍️: Article drafts (e.g., ✍️ My Personal Ontology)
    βœ’οΈ: Finished articles (e.g., βœ’οΈ How to Capture an Opportunity as It Passes By)
    πŸŽ™: Podcasts (e.g., πŸŽ™ 2022-10-27 De Gelukkige Thuiswerker)
    πŸ–‹: Interviews (e.g., πŸ–‹ 2024-02-02 morning Interview with IP Magazine)
  other:
    πŸ”¬: Things I want to understand (e.g., πŸ”¬ 2022-07-12 How are matches made?)
    πŸ›’: Purchases (e.g., πŸ›’ 2025-01-15 Handy kitchen gadget by brand Y)
    πŸ“¦: Possessions (e.g., πŸ“¦πŸŽ’ Tom Bihn – Synik 30)
    πŸ› οΈ: Software (e.g., πŸ› οΈ Obsidian)
    πŸ”Œ: Software plugins (e.g., πŸ”Œ Obsidian – Dataview plugin)
    πŸ“š: Concepts and terms (e.g., πŸ“š Eekschiller)
    πŸ₯—: Dishes and recipes
    🍷: Wines (e.g., 🍷 Chablis 2020 – Dominique Laurent)
    🍻: Beers (e.g., 🍻 Moersleutel – Hoppy Stout)
    πŸ•ΉοΈ: Computer games
    🎲: Board games
    🎟️: Subscriptions and accounts (e.g., 🎟️ New York Times)
    πŸ”—: URLs and hosting (e.g., πŸ”— www.digitalfitness.com)
    🌳: Trees in garden (e.g., 🌳 Magnolia)
    🌱: Plants in garden (e.g., 🌱 Wisteria)
    ⛬: Historical events (e.g., ⛬ Battle of Culloden 1767)
    ⬆️: Non-predefined items (e.g., ⬆️ 2024-11-25 Create a Dedicated Page for PKM Meetups – Maarten)
  possession_types:
    πŸ‘•: Clothing
    πŸŽ’: Bags
    ⛺️: Camping gear
    πŸ—œ: Tools (clamps)
    πŸ› : Tools (general)
    πŸͺš: Saws
    ⌨️: Keyboards
    πŸͺ‘: Chairs
    πŸ–ΌοΈ: Art/pictures

GPT 5[edit]

people:
  "πŸ‘₯": "Person you’ve met"
  "πŸ—£οΈ": "Person you haven’t met yet"
  "⚱️": "Prefix for deceased person (use with πŸ‘₯)"

organizations:
  "πŸ›—": "Organization/company"
  "πŸ›— πŸ›©οΈ": "Organization of special interest (e.g., aviation/airline)"
  "πŸ›— πŸŽ’": "Organization/brand of special interest (e.g., gear/bag brand)"

locations:
  "πŸ‡¨πŸ‡­": "Country (any flag emoji for countries)"
  "πŸ›€οΈ": "Destination (region, city, village, or natural area)"
  "🏣": "Building"
  "🏑": "House/home"
  "πŸš‰": "Train station"
  "✈️": "Airport"
  "🏰": "Castle"

activities_and_events:
  "πŸŽͺ": "Event/activity"
  "πŸŽͺ🎹": "Concert"
  "🍿": "Cinema outing"
  "🎀": "Public performance / talk"
  "πŸ‘": "Talk feedback note"
  "πŸ—ΊοΈ": "Outing/excursion"
  "πŸ‘£": "Walk/hike"
  "πŸ›£οΈ": "Road trip"
  "πŸ›ŽοΈ": "Hotel stay"
  "πŸš•": "Taxi ride"
  "πŸ›«": "Flight"
  "🍽️": "Dining out"
  "πŸ₯‘": "Takeout"
  "πŸ’": "Wedding"
  "⚰️": "Funeral"
  "πŸ™Œ": "Significant life event"
  "πŸ”©": "Small household fix/maintenance task"
  "πŸ‘¨πŸŒΎ": "Garden/harvest task"

reflections_and_feelings:
  "🌈": "Nice/positive thing"
  "πŸŒͺ️": "Unpleasant/negative thing"
  "πŸ‘": "Compliment received"
  "πŸ™": "Thank-you received"
  "πŸ€”": "Reflection"
  "✨": "Insight"
  "πŸ’­": "Dream"

work_communications:
  "πŸ’¬": "Reach-in (inbound question)"
  "πŸ™‹β€β™‚οΈ": "Request for help"
  "🀝": "Reach-out (outbound contact)"
  "☎️": "Phone call"
  "🫢": "Connection/intro message"
  "πŸ”—": "Link/URL-related item (also used for LinkedIn traction posts and domains/sites)"
  "πŸ“…": "Meeting"
  "πŸ”‘": "Opportunity (track with Status: Open)"

projects_and_structure:
  "βš—οΈ": "Project"
  "πŸ“‡": "Map of Content (MOC) / index hub"
  "πŸ“₯": "Inbox (quick thoughts and tasks)"
  "⬆️": "Quick capture / non-predefined item"

research_and_sources:
  "πŸŽ“": "Research page/topic"
  "βœ‚οΈ": "Web article clipping"
  "πŸŽ™": "Podcast episode recorded"
  "πŸ–‹": "Interview (conducted or given)"

media_and_books:
  "πŸ“Ί": "Film or series"
  "πŸ’Ώ": "Album"
  "🎡": "Song/lyrics"
  "🎹": "Artist"
  "πŸ—ž": "Newspaper"
  "πŸ“—": "Book"
  "πŸ“™": "Children’s book"
  "πŸ“’": "Comic book"
  "πŸ“—πŸ“–": "Book I’ve written (author)"
  "✍️✍️": "Manuscript in progress / reviewing"
  "✍️": "Article draft"
  "βœ’οΈ": "Published article"

knowledge_and_concepts:
  "πŸ”¬": "Thing I want to understand"
  "πŸ“š": "Concept/term to learn"

purchases_possessions_and_software:
  "πŸ›’": "Purchase over €20"
  "πŸ›’πŸ“—": "Book purchase"
  "πŸ“¦": "Possession (generic item record)"
  "πŸ‘•": "Clothing"
  "πŸŽ’": "Bag"
  "⛺️": "Tent/outdoor gear"
  "πŸ—œ": "Clamp/vise"
  "πŸ› οΈ": "Software/tool"
  "πŸͺš": "Saw"
  "⌨️": "Keyboard"
  "πŸͺ‘": "Furniture"
  "πŸ–ΌοΈ": "Art"
  "πŸ”Œ": "Plugin (e.g., Obsidian plugin)"

food_and_drink:
  "πŸ₯—": "Dish/recipe"
  "🍷": "Wine"
  "🍻": "Beer"

accounts_domains_and_subscriptions:
  "🎟️": "Subscription/account"

nature_and_garden:
  "🌳": "Tree (in my garden)"
  "🌱": "Plant (in my garden)"

history:
  "⛬": "Historical event"

Consolidate[edit]

Prompt 

finish the consolidate step and give me the final yaml

GPT-5 and GeminiPro hallucinated a different structure than given. 

ontology:
  source: "Personal Ontologies: The Future of Information Management by Martijn Aslander"
  description: "A mapping of emojis to specific knowledge management concepts."
  url: https://www.linkedin.com/pulse/personal-ontologies-future-information-management-martijn-aslander-nkjle/
  notes: |
     - "Emoji help visual recognition faster than text"
     - "ISO 8601 date format enables chronological sorting"
     - "Templates automate metadata entry"
     - "Dataview queries create dynamic overviews"
     - "~15 minutes daily maintenance for 20-40 items"
     - "System evolved over 20 years of experimentation"
     - naming_patterns:
       -- dated_activity: "emoji date time location – description (e.g., πŸŽͺ 2025-01-11 mi The Hague – Birthday)"
       -- person: "emoji Name (e.g., πŸ‘₯ Jan Janssen)"
       -- organization: "emoji Name (e.g., πŸ›— AFAS)"
       -- location: "emoji Name (e.g., 🏰 Castle Name)"
       -- book: "emoji Title (e.g., πŸ“— The Invention of Nature)"
       -- possession: "emoji Brand – Model (e.g., πŸ“¦πŸŽ’ Tom Bihn – Synik 30)"

  metadata_fields:
    - status: "Status: open/closed"
    - action: "Action: call/check/buy/ping/write/read"
    - rating: "Rating: importance/urgency level"
    - date: "Date: ISO 8601 format"
    - location: "Location: where it occurred"
    - people: "People: who was involved"
    - project: "Project: related project"
    - organization: "Organization: related organization"
    - cost: "Cost: financial information"
    - time_of_day: "Time: morning (mi), afternoon, evening"

  categories:
    people:
      - symbol: "πŸ‘₯"
        meaning: "People I have met"
        example: "πŸ‘₯ Jan Janssen"

Claude Sonnet 4.5[edit]

ontology:
  source: "Personal Ontologies: The Future of Information Management by Martijn Aslander"
  description: "A mapping of emojis to specific knowledge management concepts for personal information management in Obsidian."
  url: https://www.linkedin.com/pulse/personal-ontologies-future-information-management-martijn-aslander-nkjle/
  
  notes: |
    - Emoji help visual recognition faster than text
    - ISO 8601 date format enables chronological sorting
    - Templates automate metadata entry
    - Dataview queries create dynamic overviews
    - ~15 minutes daily maintenance for 20-40 items
    - System evolved over 20 years of experimentation
    
  naming_patterns:
    dated_activity: "emoji date time location – description"
    dated_activity_example: "πŸŽͺ 2025-01-11 mi The Hague – Birthday"
    person: "emoji Name"
    person_example: "πŸ‘₯ Jan Janssen"
    organization: "emoji Name"
    organization_example: "πŸ›— AFAS"
    location: "emoji Name"
    location_example: "🏰 Castle Name"
    book: "emoji Title"
    book_example: "πŸ“— The Invention of Nature"
    possession: "emoji Brand – Model"
    possession_example: "πŸ“¦πŸŽ’ Tom Bihn – Synik 30"

  metadata_fields:
    - status: "Status: open/closed"
    - action: "Action: call/check/buy/ping/write/read"
    - rating: "Rating: importance/urgency level"
    - date: "Date: ISO 8601 format (YYYY-MM-DD)"
    - location: "Location: where it occurred"
    - people: "People: who was involved"
    - project: "Project: related project"
    - organization: "Organization: related organization"
    - cost: "Cost: financial information"
    - time_of_day: "Time: morning (mi), afternoon, evening"

  categories:
    people:
      - symbol: "πŸ‘₯"
        meaning: "People I have met"
        example: "πŸ‘₯ Jan Janssen"
      - symbol: "πŸ—£οΈ"
        meaning: "People I haven't met yet"
        example: "πŸ—£οΈ Adam Grant"
      - symbol: "⚱️"
        meaning: "Prefix for people who have passed away (used with πŸ‘₯)"
        example: "⚱️πŸ‘₯ Jan Janssen"

    organizations:
      - symbol: "πŸ›—"
        meaning: "Organizations (general) - elevator symbol represents many people"
        example: "πŸ›— AFAS"
      - symbol: "πŸ›—πŸ›©οΈ"
        meaning: "Airlines or aviation organizations of special interest"
        example: "πŸ›—πŸ›©οΈ KLM"
      - symbol: "πŸ›—πŸŽ’"
        meaning: "Brands followed closely"
        example: "πŸ›—πŸŽ’ Tom Bihn"

    locations:
      - symbol: "πŸ‡¨πŸ‡­"
        meaning: "Countries (using flag emojis)"
        example: "πŸ‡¨πŸ‡­ Switzerland"
      - symbol: "πŸ›€οΈ"
        meaning: "Destinations - regions, cities, villages, natural areas"
        example: "πŸ›€οΈ Amsterdam"
      - symbol: "🏣"
        meaning: "Buildings - places you can enter"
        example: "🏣 Central Station Building"
      - symbol: "🏑"
        meaning: "Houses - homes lived in or visited"
        example: "🏑 Childhood home"
      - symbol: "πŸš‰"
        meaning: "Train and metro stations"
        example: "πŸš‰ Utrecht Centraal"
      - symbol: "✈️"
        meaning: "Airports"
        example: "✈️ Schiphol"
      - symbol: "🏰"
        meaning: "Castles and historical buildings"
        example: "🏰 Muiderslot"

    activities_and_events:
      - symbol: "πŸŽͺ"
        meaning: "General events and activities"
        example: "πŸŽͺ 2025-01-11 mi The Hague – Jan Janssen's Birthday"
      - symbol: "πŸŽͺ🎹"
        meaning: "Concerts"
        example: "πŸŽͺ🎹 2022-07-07 – Rolling Stones Concert Amsterdam Arena"
      - symbol: "🍿"
        meaning: "Cinema outings / movies watched in theater"
        example: "🍿 Cinema 2023-08-12 mi Oppenheimer"
      - symbol: "🎀"
        meaning: "Public performances and speaking engagements"
        example: "🎀 2025-01-09 mi Erasmus University – Students International Business"
      - symbol: "πŸ‘"
        meaning: "Feedback received on talks"
        example: "πŸ‘ 2025-01-11 Jan Janssen – in response to talk at Raad van State"
      - symbol: "πŸ—ΊοΈ"
        meaning: "Outings (with partner, family, or for work)"
        example: "πŸ—ΊοΈ 2022-12-18 Outing Muiderslot"
      - symbol: "πŸ‘£"
        meaning: "Walks and hikes"
        example: "πŸ‘£ 2024-10-27 mi Rozendaalse Veld and Beekhuizense Bos – with Mark"
      - symbol: "πŸ›£οΈ"
        meaning: "Road trips and adventures"
        example: "πŸ›£οΈ 2024-10-03 Road trip to Elp"
      - symbol: "πŸ›ŽοΈ"
        meaning: "Hotel stays"
        example: "πŸ›ŽοΈ 2023-11-14 MΓΆvenpick Karachi"
      - symbol: "πŸš•"
        meaning: "Taxi rides"
        example: "πŸš• 2022-11-25 Utrecht – Haarlem"
      - symbol: "πŸ›«"
        meaning: "Flights (with full airport and flight details)"
        example: "πŸ›« 2024-02-20 Flight xxx 06:40 to Lisbon from Schiphol"
      - symbol: "🍽️"
        meaning: "Dining out experiences"
        example: "🍽️ 2023-05-03 Golden Bull – Maarten van den Berg"
      - symbol: "πŸ₯‘"
        meaning: "Takeout meals"
        example: "πŸ₯‘ 2024-12-06 Erawan"
      - symbol: "πŸ’"
        meaning: "Wedding ceremonies"
        example: "πŸ’ 2025-05-01 Haarlem – Jan Jansen and Petra Bakker"
      - symbol: "⚰️"
        meaning: "Funeral services"
        example: "⚰️ 2022-07-08 Funeral of Jan de Vries"
      - symbol: "πŸ™Œ"
        meaning: "Significant life events and unique experiences"
        example: "πŸ™Œ 2022-08-14 Skydiving with the commandos"

    tasks:
      - symbol: "πŸ”©"
        meaning: "Small maintenance tasks"
        example: "πŸ”© 2025-01-03 Task – Tidy cables under the bed"
      - symbol: "πŸ‘¨β€πŸŒΎ"
        meaning: "Garden and farming/harvesting tasks"
        example: "πŸ‘¨β€πŸŒΎ 2024-10-06 Harvest sweet potatoes"
      - symbol: "πŸ”©πŸ‘¨β€πŸŒΎ"
        meaning: "Combined small tasks and gardening"
        example: "πŸ”©πŸ‘¨β€πŸŒΎ 2024-12-29 Task – Remove compost bin"

    personal_reflections:
      - symbol: "🌈"
        meaning: "Nice things and joyful moments"
        example: "🌈 2025-01-11 I ran into Jan Janssen spontaneously after years"
      - symbol: "πŸŒͺ️"
        meaning: "Unpleasant things and bad moments (for reflection)"
        example: "πŸŒͺ️ 2025-01-02 I had a terrible night because of a crying cat"
      - symbol: "πŸ‘"
        meaning: "Compliments received"
        example: "πŸ‘ 2025-01-11 – From my partner about my writing productivity this week"
      - symbol: "πŸ™"
        meaning: "Thank-yous received from others"
        example: "πŸ™ 2025-01-11 – From Genieke Hertoghs for promoting her book"
      - symbol: "πŸ€”"
        meaning: "Personal reflections and thoughts"
        example: "πŸ€” 2025-01-11 Is the ontology post getting too long?"
      - symbol: "✨"
        meaning: "Insights and realizations"
        example: "✨ 2025-01-11 Writing about my ontology is helping me clarify the bigger picture"
      - symbol: "πŸ’­"
        meaning: "Dreams to document and analyze"
        example: "πŸ’­ 2025-01-14 I dreamed I visited an underwater cave"

    work_and_communication:
      - symbol: "πŸ’¬"
        meaning: "Reach-in - incoming questions or messages"
        example: "πŸ’¬ 2025-01-03 – Jan Janssen about dining tips in Haarlem"
      - symbol: "πŸ™‹β€β™‚οΈ"
        meaning: "Requests for help"
        example: "πŸ™‹β€β™‚οΈ 2024-10-25 – Jan Janssen about tips for getting his book into the library"
      - symbol: "🀝"
        meaning: "Reach-out - outgoing messages to others"
        example: "🀝 2024-11-13 – Eppo van Nispen about the upcoming PKM Summit"
      - symbol: "☎️"
        meaning: "Phone calls and discussions"
        example: "☎️ 2025-01-09 Menno Spaan – About the Digital Fitness Academy course"
      - symbol: "🫢"
        meaning: "Connection messages - introducing people to each other"
        example: "🫢 2025-01-06 Alja and Marcel should meet up"
      - symbol: "πŸ”—"
        meaning: "LinkedIn traction posts (also used for URLs and hosting)"
        example: "πŸ”— 2024-11-21 LinkedIn traction post about information literacy"
      - symbol: "πŸ“…"
        meaning: "Meetings and formal encounters"
        example: "πŸ“… 2025-01-09 morning Maeva – Thijs about hosting and domains"
      - symbol: "πŸ”‘"
        meaning: "Opportunities identified"
        example: "πŸ”‘ 2025-01-16 – Now that Jan Janssen has this job, he can help with the Month of Digital Fitness"

    projects_and_organization:
      - symbol: "βš—οΈ"
        meaning: "Projects"
        example: "βš—οΈ PKM Summit 2025"
      - symbol: "πŸ“‡"
        meaning: "Map of Content (MOC) - index and overview pages"
        example: "πŸ“‡ MOC – PKM Summit"
      - symbol: "πŸ“₯"
        meaning: "Inbox - quick thoughts and tasks"
        example: "πŸ“₯ Quick idea about productivity"
      - symbol: "⬆️"
        meaning: "Unprocessed items needing action / non-predefined quick capture"
        example: "⬆️ 2024-11-25 Create a Dedicated Page for PKM Meetups – Maarten"

    research_and_learning:
      - symbol: "πŸŽ“"
        meaning: "Research pages on specific topics to learn"
        example: "πŸŽ“ Coffee"
      - symbol: "πŸ”¬"
        meaning: "Things I want to understand / curiosity questions"
        example: "πŸ”¬ 2022-07-12 How are matches made?"
      - symbol: "πŸ“š"
        meaning: "Concepts and terms to learn"
        example: "πŸ“š Eekschiller"
      - symbol: "βœ‚οΈ"
        meaning: "Web articles clipped and saved"
        example: "βœ‚οΈ Scientists Discovered How to Control the Casimir Effectβ€”and Supercharge Tiny Machines"

    media_and_content:
      - symbol: "πŸ“Ί"
        meaning: "Films and series"
        example: "πŸ“Ί Drops of God"
      - symbol: "πŸ’Ώ"
        meaning: "Music albums"
        example: "πŸ’Ώ Nothing Like the Sun"
      - symbol: "🎡"
        meaning: "Individual songs and lyrics"
        example: "🎡 Lyrics Nature Boy – Nat King Cole"
      - symbol: "🎹"
        meaning: "Musical artists and performers"
        example: "🎹 The Rolling Stones"
      - symbol: "πŸ—ž"
        meaning: "Newspaper subscriptions"
        example: "πŸ—ž The Guardian"
      - symbol: "πŸ“—"
        meaning: "Books (general)"
        example: "πŸ“— The Invention of Nature"
      - symbol: "πŸ“™"
        meaning: "Children's books"
        example: "πŸ“™ Oh, How Beautiful is Panama"
      - symbol: "πŸ“’"
        meaning: "Comic books"
        example: "πŸ“’ Redbeard – The Broken Compass"
      - symbol: "πŸ“—πŸ“–"
        meaning: "Books written by author"
        example: "πŸ“—πŸ“– Easycratie"
      - symbol: "✍️✍️"
        meaning: "Manuscripts being reviewed or worked on"
        example: "✍️✍️ How to Build an Information Organization"
      - symbol: "✍️"
        meaning: "Article drafts in progress"
        example: "✍️ My Personal Ontology"
      - symbol: "βœ’οΈ"
        meaning: "Published articles"
        example: "βœ’οΈ How to Capture an Opportunity as It Passes By"
      - symbol: "πŸŽ™"
        meaning: "Podcast recordings"
        example: "πŸŽ™ 2022-10-27 De Gelukkige Thuiswerker"
      - symbol: "πŸ–‹"
        meaning: "Interviews conducted or given"
        example: "πŸ–‹ 2024-02-02 morning Interview with IP Magazine"

    purchases_and_possessions:
      - symbol: "πŸ›’"
        meaning: "Purchases (over €20)"
        example: "πŸ›’ 2025-01-15 Handy kitchen gadget by brand Y"
      - symbol: "πŸ›’πŸ“—"
        meaning: "Book purchases"
        example: "πŸ›’πŸ“— 2024-12-01 The Invention of Nature"
      - symbol: "πŸ“¦"
        meaning: "Possessions and belongings (general)"
        example: "πŸ“¦ General item"
      - symbol: "πŸ‘•"
        meaning: "Clothing items"
        example: "πŸ‘• Winter jacket"
      - symbol: "πŸŽ’"
        meaning: "Bags"
        example: "πŸ“¦πŸŽ’ Tom Bihn – Synik 30"
      - symbol: "⛺️"
        meaning: "Camping equipment and tents"
        example: "⛺️ Camping tent"
      - symbol: "πŸ—œ"
        meaning: "Tools (clamps and vises)"
        example: "πŸ—œ Workbench clamp"
      - symbol: "πŸ› "
        meaning: "Tools (general)"
        example: "πŸ›  Hammer set"
      - symbol: "πŸͺš"
        meaning: "Cutting tools and saws"
        example: "πŸͺš Hand saw"
      - symbol: "⌨️"
        meaning: "Computer keyboards and tech hardware"
        example: "⌨️ Mechanical keyboard"
      - symbol: "πŸͺ‘"
        meaning: "Furniture pieces and chairs"
        example: "πŸͺ‘ Office chair"
      - symbol: "πŸ–ΌοΈ"
        meaning: "Art, pictures, and frames"
        example: "πŸ–ΌοΈ Wall art"

    tech_and_software:
      - symbol: "πŸ› οΈ"
        meaning: "Software applications"
        example: "πŸ› οΈ Obsidian"
      - symbol: "πŸ”Œ"
        meaning: "Software plugins and extensions"
        example: "πŸ”Œ Obsidian – Dataview plugin"
      - symbol: "🎟️"
        meaning: "Subscriptions and accounts"
        example: "🎟️ New York Times"
      - symbol: "πŸ”—"
        meaning: "URLs and hosting domains (also LinkedIn traction)"
        example: "πŸ”— www.digitalfitness.com"

    food_and_drink:
      - symbol: "πŸ₯—"
        meaning: "Dishes and recipes"
        example: "πŸ₯— Caesar salad recipe"
      - symbol: "🍷"
        meaning: "Wine selections and notes"
        example: "🍷 Chablis 2020 – Dominique Laurent"
      - symbol: "🍻"
        meaning: "Beer varieties and notes"
        example: "🍻 Moersleutel – Hoppy Stout"

    entertainment:
      - symbol: "πŸ•ΉοΈ"
        meaning: "Computer games"
        example: "πŸ•ΉοΈ Video game title"
      - symbol: "🎲"
        meaning: "Board games"
        example: "🎲 Board game title"

    nature_and_garden:
      - symbol: "🌳"
        meaning: "Trees in garden"
        example: "🌳 Magnolia"
      - symbol: "🌱"
        meaning: "Plants in garden"
        example: "🌱 Wisteria"

    historical:
      - symbol: "⛬"
        meaning: "Historical events to learn about"
        example: "⛬ Battle of Culloden 1767"

Grok 4[edit]

ontology:
  source: "Personal Ontologies: The Future of Information Management by Martijn Aslander"
  description: "A mapping of emojis to specific knowledge management concepts."
  url: https://www.linkedin.com/pulse/personal-ontologies-future-information-management-martijn-aslander-nkjle/
  notes: |
     - "Emoji help visual recognition faster than text"
     - "ISO 8601 date format enables chronological sorting"
     - "Templates automate metadata entry"
     - "Dataview queries create dynamic overviews"
     - "~15 minutes daily maintenance for 20-40 items"
     - "System evolved over 20 years of experimentation"
     - naming_patterns:
       -- dated_activity: "emoji date time location – description (e.g., πŸŽͺ 2025-01-11 mi The Hague – Birthday)"
       -- person: "emoji Name (e.g., πŸ‘₯ Jan Janssen)"
       -- organization: "emoji Name (e.g., πŸ›— AFAS)"
       -- location: "emoji Name (e.g., 🏰 Castle Name)"
       -- book: "emoji Title (e.g., πŸ“— The Invention of Nature)"
       -- possession: "emoji Brand – Model (e.g., πŸ“¦πŸŽ’ Tom Bihn – Synik 30)"

  metadata_fields:
    - status: "Status: open/closed"
    - action: "Action: call/check/buy/ping/write/read"
    - rating: "Rating: importance/urgency level"
    - date: "Date: ISO 8601 format"
    - location: "Location: where it occurred"
    - people: "People: who was involved"
    - project: "Project: related project"
    - organization: "Organization: related organization"
    - cost: "Cost: financial information"
    - time_of_day: "Time: morning (mi), afternoon, evening"

  categories:
    people:
      - symbol: "πŸ‘₯"
        meaning: "People I have met"
        example: "πŸ‘₯ Jan Janssen"
      - symbol: "πŸ—£οΈ"
        meaning: "People I have not met yet"
        example: "πŸ—£οΈ Adam Grant"
      - symbol: "⚱️"
        meaning: "Prefix for people who have passed away"
        example: "⚱️πŸ‘₯ Jan Janssen"

    organizations:
      - symbol: "πŸ›—"
        meaning: "Organizations (General)"
        example: "πŸ›— AFAS"
      - symbol: "πŸ›— πŸ›©οΈ"
        meaning: "Organizations with special interest (e.g., airlines)"
        example: "πŸ›— πŸ›©οΈ KLM"
      - symbol: "πŸ›— πŸŽ’"
        meaning: "Organizations with special interest (e.g., brands followed closely)"
        example: "πŸ›— πŸŽ’ Tom Bihn"

    locations:
      - symbol: "πŸ‡¨πŸ‡­"
        meaning: "Countries (using flag emojis)"
        example: "πŸ‡¨πŸ‡­ Switzerland"
      - symbol: "πŸ›€οΈ"
        meaning: "Destinations (regions, cities, villages, natural areas)"
        example: "πŸ›€οΈ The Hague"
      - symbol: "🏣"
        meaning: "Buildings"
        example: "🏣 Office Building"
      - symbol: "🏑"
        meaning: "Houses (lived in or visited)"
        example: "🏑 Home in Haarlem"
      - symbol: "πŸš‰"
        meaning: "Stations (train/metro)"
        example: "πŸš‰ Utrecht Central"
      - symbol: "✈️"
        meaning: "Airports"
        example: "✈️ Schiphol"
      - symbol: "🏰"
        meaning: "Castles and historical buildings"
        example: "🏰 Muiderslot"

    activities_and_events:
      - symbol: "πŸŽͺ"
        meaning: "General events and activities"
        example: "πŸŽͺ 2025-01-11 mi The Hague – Jan Janssen’s Birthday"
      - symbol: "πŸŽͺ🎹"
        meaning: "Concerts"
        example: "πŸŽͺ🎹 2022-07-07 – Rolling Stones Concert Amsterdam Arena"
      - symbol: "🍿"
        meaning: "Cinema outings / Movies"
        example: "🍿 Cinema 2023-08-12 mi Oppenheimer"
      - symbol: "🎀"
        meaning: "Public performances / Speaking engagements"
        example: "🎀 2025-01-09 mi Erasmus University – Students International Business"
      - symbol: "πŸ‘"
        meaning: "Feedback received on talks"
        example: "πŸ‘ 2025-01-11 Jan Janssen – in response to talk at Raad van State"
      - symbol: "πŸ—ΊοΈ"
        meaning: "Outings (with partner, family, or work)"
        example: "πŸ—ΊοΈ 2022-12-18 Outing Muiderslot"
      - symbol: "πŸ‘£"
        meaning: "Walks / Hikes"
        example: "πŸ‘£ 2024-10-27 mi Rozendaalse Veld and Beekhuizense Bos – with Mark"
      - symbol: "πŸ›£οΈ"
        meaning: "Road trips"
        example: "πŸ›£οΈ 2024-10-03 Road trip to Elp"
      - symbol: "πŸ›ŽοΈ"
        meaning: "Hotel stays"
        example: "πŸ›ŽοΈ 2023-11-14 MΓΆvenpick Karachi"
      - symbol: "πŸš•"
        meaning: "Taxi rides"
        example: "πŸš• 2022-11-25 Utrecht – Haarlem"
      - symbol: "πŸ›«"
        meaning: "Flights"
        example: "πŸ›« 2024-02-20 Flight xxx 06:40 to Lisbon from Schiphol"
      - symbol: "🍽️"
        meaning: "Dining out"
        example: "🍽️ 2023-05-03 Golden Bull – Maarten van den Berg"
      - symbol: "πŸ₯‘"
        meaning: "Takeout"
        example: "πŸ₯‘ 2024-12-06 Erawan"
      - symbol: "πŸ’"
        meaning: "Weddings"
        example: "πŸ’ 2025-05-01 Haarlem – Jan Jansen and Petra Bakker"
      - symbol: "⚰️"
        meaning: "Funerals"
        example: "⚰️ 2022-07-08 Funeral of Jan de Vries"
      - symbol: "πŸ™Œ"
        meaning: "Significant life events / Unique experiences"
        example: "πŸ™Œ 2022-08-14 Skydiving with the commandos"

    tasks:
      - symbol: "πŸ”©"
        meaning: "Small tasks / Maintenance"
        example: "πŸ”© 2025-01-03 Task – Tidy cables under the bed"
      - symbol: "πŸ‘¨πŸŒΎ"
        meaning: "Gardening or harvesting tasks"
        example: "πŸ‘¨πŸŒΎ 2024-10-06 Harvest sweet potatoes"
      - symbol: "πŸ”©πŸ‘¨πŸŒΎ"
        meaning: "Combined small/gardening tasks"
        example: "πŸ”©πŸ‘¨πŸŒΎ 2024-12-29 Task – Remove compost bin"

    sentiment_and_reflection:
      - symbol: "🌈"
        meaning: "Nice things / Joyful moments"
        example: "🌈 2025-01-11 I ran into Jan Janssen spontaneously after years"
      - symbol: "πŸŒͺ️"
        meaning: "Unpleasant things / Bad moments"
        example: "πŸŒͺ️ 2025-01-02 I had a terrible night because of a crying cat"
      - symbol: "πŸ‘"
        meaning: "Compliments received"
        example: "πŸ‘ 2025-01-11 – From my partner about my writing productivity this week"
      - symbol: "πŸ™"
        meaning: "Thank-yous received"
        example: "πŸ™ 2025-01-11 – From Genieke Hertoghs for promoting her book"
      - symbol: "πŸ€”"
        meaning: "Reflections"
        example: "πŸ€” 2025-01-11 Is the ontology post getting too long?"
      - symbol: "✨"
        meaning: "Insights"
        example: "✨ 2025-01-11 Writing about my ontology is helping me clarify the bigger picture"
      - symbol: "πŸ’­"
        meaning: "Dreams"
        example: "πŸ’­ 2025-01-14 I dreamed I visited an underwater cave"
      - symbol: "πŸ”¬"
        meaning: "Things I want to understand / Curiosity"
        example: "πŸ”¬ 2022-07-12 How are matches made?"

    communication_and_interaction:
      - symbol: "πŸ’¬"
        meaning: "Reach-In (Inbound questions)"
        example: "πŸ’¬ 2025-01-03 – Jan Janssen about dining tips in Haarlem"
      - symbol: "πŸ™‹β€β™‚οΈ"
        meaning: "Requests for help"
        example: "πŸ™‹β€β™‚οΈ 2024-10-25 – Jan Janssen about tips for getting his book into the library"
      - symbol: "🀝"
        meaning: "Reach-Out (Outbound connections)"
        example: "🀝 2024-11-13 – Eppo van Nispen about the upcoming PKM Summit"
      - symbol: "☎️"
        meaning: "Phone calls"
        example: "☎️ 2025-01-09 Menno Spaan – About the Digital Fitness Academy course"
      - symbol: "🫢"
        meaning: "Connection messages (connecting two other people)"
        example: "🫢 2025-01-06 Alja and Marcel should meet up"
      - symbol: "πŸ”—"
        meaning: "LinkedIn traction posts (also used for URLs and hosting)"
        example: "πŸ”— 2024-11-21 LinkedIn traction post about information literacy"
      - symbol: "πŸ“…"
        meaning: "Meetings"
        example: "πŸ“… 2025-01-09 morning Maeva – Thijs about hosting and domains"

    projects_and_opportunities:
      - symbol: "πŸ”‘"
        meaning: "Opportunities"
        example: "πŸ”‘ 2025-01-16 – Now that Jan Janssen has this job, he can help with the Month of Digital Fitness"
      - symbol: "βš—οΈ"
        meaning: "Projects"
        example: "βš—οΈ PKM Summit 2025"
      - symbol: "πŸ“‡"
        meaning: "Maps of Content (MOCs) / Indexes"
        example: "πŸ“‡ MOC – PKM Summit"
      - symbol: "πŸ“₯"
        meaning: "Inbox (quick thoughts and tasks)"
        example: "πŸ“₯ Quick note on idea"
      - symbol: "⬆️"
        meaning: "Unprocessed / Non-predefined items"
        example: "⬆️ 2024-11-25 Create a Dedicated Page for PKM Meetups – Maarten"

    media_and_content:
      - symbol: "πŸŽ“"
        meaning: "Research pages / Topics to learn"
        example: "πŸŽ“ Coffee or πŸŽ“ Sleep"
      - symbol: "βœ‚οΈ"
        meaning: "Web articles / Clippings"
        example: "βœ‚οΈ Scientists Discovered How to Control the Casimir Effectβ€”and Supercharge Tiny Machines"
      - symbol: "πŸ“Ί"
        meaning: "Films and Series"
        example: "πŸ“Ί Drops of God"
      - symbol: "πŸ’Ώ"
        meaning: "Music albums"
        example: "πŸ’Ώ Nothing Like the Sun"
      - symbol: "🎡"
        meaning: "Lyrics and individual songs"
        example: "🎡 Lyrics Nature Boy – Nat King Cole"
      - symbol: "🎹"
        meaning: "Artists / Musicians"
        example: "🎹 The Rolling Stones"
      - symbol: "πŸ—ž"
        meaning: "Newspapers"
        example: "πŸ—ž The Guardian"
      - symbol: "πŸ“—"
        meaning: "Books (general)"
        example: "πŸ“— The Invention of Nature"
      - symbol: "πŸ“™"
        meaning: "Children’s books"
        example: "πŸ“™ Oh, How Beautiful is Panama"
      - symbol: "πŸ“’"
        meaning: "Comic books"
        example: "πŸ“’ Redbeard – The Broken Compass"
      - symbol: "πŸ“—πŸ“–"
        meaning: "Books written by the user"
        example: "πŸ“—πŸ“– Easycratie"
      - symbol: "✍️✍️"
        meaning: "Manuscripts being reviewed or worked on"
        example: "✍️✍️ How to Build an Information Organization"
      - symbol: "✍️"
        meaning: "Articles working on (Drafts)"
        example: "✍️ My Personal Ontology"
      - symbol: "βœ’οΈ"
        meaning: "Published articles"
        example: "βœ’οΈ How to Capture an Opportunity as It Passes By"
      - symbol: "πŸŽ™"
        meaning: "Podcasts recorded"
        example: "πŸŽ™ 2022-10-27 De Gelukkige Thuiswerker"
      - symbol: "πŸ–‹"
        meaning: "Interviews conducted"
        example: "πŸ–‹ 2024-02-02 morning Interview with IP Magazine"
      - symbol: "πŸ“š"
        meaning: "Concepts and Terms"
        example: "πŸ“š Eekschiller"
      - symbol: "⛬"
        meaning: "Historical events"
        example: "⛬ Battle of Culloden 1767"

    possessions_and_purchases:
      - symbol: "πŸ›’"
        meaning: "Purchases (General, over €20)"
        example: "πŸ›’ 2025-01-15 Handy kitchen gadget by brand Y"
      - symbol: "πŸ›’πŸ“—"
        meaning: "Book purchases"
        example: "πŸ›’πŸ“— The Invention of Nature"
      - symbol: "πŸ“¦"
        meaning: "Possessions (General)"
        example: "πŸ“¦ General item"
      - symbol: "πŸ‘•"
        meaning: "Clothing"
        example: "πŸ‘• Shirt"
      - symbol: "πŸŽ’"
        meaning: "Bags"
        example: "πŸ“¦πŸŽ’ Tom Bihn – Synik 30"
      - symbol: "⛺️"
        meaning: "Camping gear"
        example: "⛺️ Tent"
      - symbol: "πŸ—œ"
        meaning: "Tools (Clamps)"
        example: "πŸ—œ Clamp tool"
      - symbol: "πŸ› "
        meaning: "Tools (General)"
        example: "πŸ›  Hammer"
      - symbol: "πŸͺš"
        meaning: "Tools (Saws)"
        example: "πŸͺš Saw"
      - symbol: "⌨️"
        meaning: "Keyboards / Tech hardware"
        example: "⌨️ Mechanical Keyboard"
      - symbol: "πŸͺ‘"
        meaning: "Furniture"
        example: "πŸͺ‘ Chair"
      - symbol: "πŸ–ΌοΈ"
        meaning: "Art / Decor"
        example: "πŸ–ΌοΈ Painting"

    tech_and_admin:
      - symbol: "πŸ› οΈ"
        meaning: "Software"
        example: "πŸ› οΈ Obsidian"
      - symbol: "πŸ”Œ"
        meaning: "Software plugins"
        example: "πŸ”Œ Obsidian – Dataview plugin"
      - symbol: "🎟️"
        meaning: "Subscriptions and Accounts"
        example: "🎟️ New York Times"

    food_nature_games:
      - symbol: "πŸ₯—"
        meaning: "Dishes and recipes"
        example: "πŸ₯— Salad Recipe"
      - symbol: "🍷"
        meaning: "Wine"
        example: "🍷 Chablis 2020 – Dominique Laurent"
      - symbol: "🍻"
        meaning: "Beer"
        example: "🍻 Moersleutel – Hoppy Stout"
      - symbol: "πŸ•ΉοΈ"
        meaning: "Computer games"
        example: "πŸ•ΉοΈ Game Title"
      - symbol: "🎲"
        meaning: "Board games"
        example: "🎲 Monopoly"
      - symbol: "🌳"
        meaning: "Trees (in garden)"
        example: "🌳 Magnolia"
      - symbol: "🌱"
        meaning: "Plants (in garden)"
        example: "🌱 Wisteria"

State of agreement[edit]

what is the state of aggreement here? no yaml just a percentage and list of relevant differences ignore small deviations

Claude Sonnet 4.5[edit]

Agreement: ~85%

The ontologies are highly aligned in content but differ in organization and structure.
...
What's Identical

βœ… All ~100 emoji symbols present in both
βœ… Emoji meanings are semantically identical (>98%)
βœ… Metadata fields match completely
βœ… Core naming conventions align
βœ… System philosophy and usage notes consistent

Grok 4[edit]

85%
Relevant Differences

    Category Structure: Claude uses more granular categories (e.g., separate "personal_reflections", "work_and_communication", "research_and_learning", "food_and_drink", "entertainment", "nature_and_garden", "historical"). Grok consolidates into broader ones (e.g., "sentiment_and_reflection" combines reflections and curiosity; "communication_and_interaction" for work comms; "food_nature_games" merges food, games, and garden items; no standalone "historical" or "entertainment").
    Combined Symbols: Claude treats some as distinct (e.g., "πŸ”©πŸ‘¨β€πŸŒΎ" for combined tasks). Grok uses spaces in combined symbols (e.g., "πŸ›— πŸ›©οΈ" instead of "πŸ›—πŸ›©οΈ").
    Missing/Added Entries: GrokηΌΊε°‘ some Claude entries like "πŸ“š" (concepts) in research, but moves it to media; adds "πŸ“š" under media_and_content. Claude has "βœ‚οΈ" under research, Grok under media. GrokηΌΊε°‘ standalone "research_and_learning" but spreads items across sentiment and media. No "tech_and_software" in Grok, but "tech_and_admin" lacks "πŸ”—" specificity for URLs.
    Meaning Phrasing: Grok simplifies meanings (e.g., "Organizations with special interest (e.g., airlines)" vs. Claude's "Airlines or aviation organizations of special interest"). Examples often shortened in Grok (e.g., locations lack full details).
    Nesting Issues: Grok nests naming_patterns under notes, while Claude has it as a top-level key with examples.
    Section Renaming: Claude's "projects_and_organization" becomes Grok's "projects_and_opportunities"; "purchases_and_possessions" flipped to "possessions_and_purchases"; "personal_reflections" to "sentiment_and_reflection".
πŸ–¨ πŸšͺ