Lexeme/entity schema datatypes are missing from ontology.owl
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	Nikki
	Aug 3 2024, 2:46 PM

Description

Problem:
Looking at https://wikiba.se/ontology, the following property datatypes are missing (example query):

wikibase:WikibaseLexeme
wikibase:WikibaseForm
wikibase:WikibaseSense
wikibase:EntitySchema

The following predicate is also missing (example query):

wikibase:directClaimNormalized

The AllDisjointClasses section has wikibase:Form but not wikibase:Sense.

Acceptance criteria:

the ontology files inthe source code repos are updated (note: you might need to add a new ontology file to the EntitySchema extension since it doesn't have one yet)
the missing datatypes are defined in https://wikiba.se/ontology
the missing predicate is defined in https://wikiba.se/ontology
wikibase:Sense is added to the AllDisjointClasses section in https://wikiba.se/ontology

~~[ ] Lydia has found the checklist for adding a new datatype and makes sure updating the ontology file is included in the checklist~~

Additional info:

The Wikibase Suite team can upload a new ontology file to https://wikiba.se

Details

Related Changes in Gerrit:

Subject	Repo	Branch	Lines +/-
ontology: Add Wikibase:WikibaseLexeme, Wikibase:WikibaseForm, Wikibase:WikibaseSense	mediawiki/extensions/WikibaseLexeme	master	+28 -0
ontology: Add wikibase:directClaimNormalized	mediawiki/extensions/Wikibase	master	+6 -0
ontology: Fix indentation	mediawiki/extensions/WikibaseLexeme	master	+18 -18
ontology: Fix indentation	mediawiki/extensions/Wikibase	master	+152 -152

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		Status	Subtype	Assigned	Task
		Resolved		Arian_Bozorg	T371752 Lexeme/entity schema datatypes are missing from ontology.owl
		Resolved	BUG REPORT	Arian_Bozorg	T371196 The EntitySchema type URI is missing from the Wikibase ontology

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There are a very large number of changes, so older changes are hidden. Show Older Changes

FYI: The EntitySchema part of this is also covered in T371196.

Could it be that something else is wrong here? The ontology contains wikibase:Lexeme, wikibase:Form, Wikibase:Sense but the properties refers to the wikibase:Wikibase* form, however, the EntitySchema property refers to the wikibase:EntitySchema one.

What's the difference between the two forms? Should the wikibase:Wikibase* form even exist?

karapayneWMDE moved this task from Incoming to Product Backlog on the [Archived]Wikidata Dev Team board.Aug 27 2024, 2:23 PM

Arian_Bozorg added a subtask: T371196: The EntitySchema type URI is missing from the Wikibase ontology.Sep 24 2024, 9:38 AM

@Nikki I made some edits in the doc here:

ontology-1.1.owl21 KBDownload

The new sections are marked in there, let me know if this works and we will get it up on the ontology page :)

ArthurTaylor renamed this task from Lexeme/entity schema datatypes are missing from ontology.owl to [SW] Lexeme/entity schema datatypes are missing from ontology.owl.Nov 6 2024, 10:40 AM

ArthurTaylor moved this task from Product Backlog to SEND TO OMEGA BOARD. Will land in the 'incoming' column and need to be moved to the correct location (former Unified DOT Backlog) on the [Archived]Wikidata Dev Team board.

Lydia_Pintscher updated the task description. (Show Details)Nov 6 2024, 4:50 PM

Lydia_Pintscher updated the task description. (Show Details)Nov 11 2024, 10:51 AM

Lydia_Pintscher renamed this task from [SW] Lexeme/entity schema datatypes are missing from ontology.owl to Lexeme/entity schema datatypes are missing from ontology.owl.Nov 11 2024, 10:54 AM

I looked for the checklist but can't find it.

Lydia_Pintscher updated the task description. (Show Details)Nov 11 2024, 11:24 AM

ArthurTaylor claimed this task.Nov 21 2024, 9:22 AM

ArthurTaylor edited projects, added [Archived]Wikidata Dev Team (Wikidata.org Slice); removed [Archived]Wikidata Dev Team.

ArthurTaylor moved this task from In Task Breakdown to In Development on the [Archived]Wikidata Dev Team (Wikidata.org Slice) board.

I created an EntitySchema ontology per T371196, and this document is then the combined ontology of Wikibase, WikibaseLexeme and EntitySchema:

ontology.owl21 KBDownload

Would be great if you could review this, @Lydia_Pintscher , before we try and make it live on the site.

PM input needed

Arian_Bozorg moved this task from Wikidata.org Slice to Epics+STALLED on the [Archived]Wikidata Dev Team board.Nov 26 2024, 9:30 AM

Arian_Bozorg edited projects, added [Archived]Wikidata Dev Team; removed [Archived]Wikidata Dev Team (Wikidata.org Slice).

Thanks, Arthur! Can we please keep the source at the top of the file so that we know where individual pieces of the file come from? But the rest looks good pending the new EntitySchema wikibase:propertyType value name

karapayneWMDE removed Arian_Bozorg as the assignee of this task.Nov 29 2024, 8:38 AM

karapayneWMDE moved this task from Epics+STALLED to Epics & Stalled on the [Archived]Wikidata Dev Team board.Nov 29 2024, 1:52 PM

karapayneWMDE edited projects, added [Archived]Wikidata Dev Team (Epics & Stalled); removed [Archived]Wikidata Dev Team.

karapayneWMDE moved this task from Incoming to Stalled on the [Archived]Wikidata Dev Team (Epics & Stalled) board.Nov 29 2024, 1:57 PM

Can we clarify what this is stalled on please?
This is becoming time sensitive.

Seems to be waiting on T371196, which is waiting on T380976

Arian_Bozorg edited projects, added [Archived]Wikidata Dev Team; removed [Archived]Wikidata Dev Team (Epics & Stalled).Mar 14 2025, 5:09 PM

Arian_Bozorg moved this task from Incoming to Product Backlog on the [Archived]Wikidata Dev Team board.Mar 18 2025, 3:50 PM

Arian_Bozorg added a project: Wikidata-Omega.Mar 26 2025, 9:50 AM

Arian_Bozorg moved this task from Incoming to The Backlog on the Wikidata-Omega board.

In T371752#10480194, @ArthurTaylor wrote:

Seems to be waiting on T371196, which is waiting on T380976

Partially yes, but I think we can also update WikibaseLexeme’s ontology.owl in parallel. (Edit: and Wikibase’s.)

Change #1135064 had a related patch set uploaded (by Lucas Werkmeister (WMDE); author: Lucas Werkmeister (WMDE)):

[mediawiki/extensions/WikibaseLexeme@master] ontology: Fix indentation

https://gerrit.wikimedia.org/r/1135064

Change #1135065 had a related patch set uploaded (by Lucas Werkmeister (WMDE); author: Lucas Werkmeister (WMDE)):

[mediawiki/extensions/WikibaseLexeme@master] ontology: Add Wikibase:WikibaseLexeme, Wikibase:WikibaseForm, Wikibase:WikibaseSense

https://gerrit.wikimedia.org/r/1135065

Change #1135068 had a related patch set uploaded (by Lucas Werkmeister (WMDE); author: Lucas Werkmeister (WMDE)):

[mediawiki/extensions/Wikibase@master] ontology: Fix indentation

https://gerrit.wikimedia.org/r/1135068

Change #1135069 had a related patch set uploaded (by Lucas Werkmeister (WMDE); author: Lucas Werkmeister (WMDE)):

[mediawiki/extensions/Wikibase@master] ontology: Add wikibase:directClaimNormalized

https://gerrit.wikimedia.org/r/1135069

Lucas_Werkmeister_WMDE removed Lucas_Werkmeister_WMDE as the assignee of this task.Apr 8 2025, 3:54 PM

Lucas_Werkmeister_WMDE moved this task from In Development to Ready for Peer Review on the Wikidata-Omega (The Board) board.

Change #1135068 merged by jenkins-bot:

[mediawiki/extensions/Wikibase@master] ontology: Fix indentation

https://gerrit.wikimedia.org/r/1135068

Change #1135064 merged by jenkins-bot:

[mediawiki/extensions/WikibaseLexeme@master] ontology: Fix indentation

https://gerrit.wikimedia.org/r/1135064

ReleaseTaggerBot added a project: MW-1.44-notes (1.44.0-wmf.25; 2025-04-15).Apr 8 2025, 6:00 PM

ArthurTaylor claimed this task.Apr 9 2025, 7:25 AM

ArthurTaylor reassigned this task from ArthurTaylor to hoo.

ArthurTaylor moved this task from Ready for Peer Review to In Peer Review on the Wikidata-Omega (The Board) board.

Change #1135065 merged by jenkins-bot:

[mediawiki/extensions/WikibaseLexeme@master] ontology: Add Wikibase:WikibaseLexeme, Wikibase:WikibaseForm, Wikibase:WikibaseSense

https://gerrit.wikimedia.org/r/1135065

Change #1135069 merged by jenkins-bot:

[mediawiki/extensions/Wikibase@master] ontology: Add wikibase:directClaimNormalized

https://gerrit.wikimedia.org/r/1135069

The AllDisjointClasses section has wikibase:Form but not wikibase:Sense.

It’s not clear to me where that even comes from… did we just add that to the merged ontology file manually without it being part of any of the Git-tracked ontology files?

Stalled now until T371196 is done, I think.

Maintenance_bot removed a project: Patch-For-Review.Apr 14 2025, 9:30 AM

Arian_Bozorg changed the task status from Stalled to Open.Apr 29 2025, 8:18 AM

Arian_Bozorg moved this task from Parent Task to Ready for Development on the Wikidata-Omega (The Board) board.

AudreyPenven_WMDE moved this task from Ready for Development to Waiting for Deployment Window on the Wikidata-Omega (The Board) board.May 5 2025, 8:20 AM

some kind of deployment is needed, so brought back to the ready for dev column to acknowledge that there is work still to be done. (the waiting for deploy is a passive column for after the deployment window has been arranged)

file needs to be created then can send it to Jon Amar

Lucas_Werkmeister_WMDE removed hoo as the assignee of this task.May 12 2025, 8:18 AM

Lucas_Werkmeister_WMDE added a subscriber: hoo.

Lucas_Werkmeister_WMDE claimed this task.May 13 2025, 10:43 AM

Lucas_Werkmeister_WMDE moved this task from Ready for Development to In Development on the Wikidata-Omega (The Board) board.

Here’s a new merged ontology file for review:

ontology-new.owl21 KBDownload

Differences to the current one, excluding whitespace:

git diff --no-index -w ontology-{old,new}.owl

diff --git 1/ontology-old.owl 2/ontology-new.owl
index 7022a2dac8..34499c6863 100644
--- 1/ontology-old.owl
+++ 2/ontology-new.owl
@@ -5,6 +5,7 @@
 // Sources:
 // https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/Wikibase/+/refs/heads/master/docs/ontology.owl
 // https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/WikibaseLexeme/+/refs/heads/master/docs/ontology.owl
+// https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/EntitySchema/+/refs/heads/master/docs/ontology.owl
 ///////////////////////////////////////////////////////////////////////////////////////
 -->
 
@@ -30,6 +31,7 @@
     <rdfs:comment>The system ontology of Wikibase</rdfs:comment>
     <rdfs:seeAlso rdf:resource="https://www.mediawiki.org/wiki/Wikibase/Indexing/RDF_Dump_Format" />
     <rdfs:seeAlso rdf:resource="https://www.mediawiki.org/wiki/Extension:WikibaseLexeme/RDF_mapping" />
+    <rdfs:seeAlso rdf:resource="https://www.mediawiki.org/wiki/Extension:EntitySchema/RDF_mapping" />
     <cc:licence rdf:resource="http://creativecommons.org/publicdomain/zero/1.0/" />
   </owl:Ontology>
 
@@ -259,6 +261,12 @@
     <rdfs:domain rdf:resource="&wikibase;Property"/>
   </owl:ObjectProperty>
 
+  <owl:ObjectProperty rdf:about="&wikibase;directClaimNormalized">
+    <rdfs:label>directClaimNormalized</rdfs:label>
+    <rdfs:comment>Link between Wikibase Property and normalized direct claim predicate.</rdfs:comment>
+    <rdfs:domain rdf:resource="&wikibase;Property"/>
+  </owl:ObjectProperty>
+
   <owl:ObjectProperty rdf:about="&wikibase;claim">
     <rdfs:label>claim</rdfs:label>
     <rdfs:comment>Link between Wikibase Property and claim predicate.</rdfs:comment>
@@ -438,20 +446,20 @@
   <!--
   ///////////////////////////////////////////////////////////////////////////////////////
   //
-  // Wikibase Lexeme classes and properties
+  // WikibaseLexeme Classes
   //
   ///////////////////////////////////////////////////////////////////////////////////////
   -->
 
   <owl:Class rdf:about="&wikibase;Lexeme">
     <rdfs:label>Lexeme</rdfs:label>
-    <rdfs:comment>Wikibase Lexeme.</rdfs:comment>
+    <rdfs:comment>Wikibase lexeme.</rdfs:comment>
     <rdfs:subClassOf rdf:resource="&wikibase;Entity"/>
   </owl:Class>
 
   <owl:Class rdf:about="&wikibase;Form">
     <rdfs:label>Form</rdfs:label>
-      <rdfs:comment>Wikibase Form.</rdfs:comment>
+    <rdfs:comment>Wikibase form.</rdfs:comment>
     <rdfs:subClassOf rdf:resource="&wikibase;Entity"/>
   </owl:Class>
 
@@ -461,6 +469,14 @@
     <rdfs:subClassOf rdf:resource="&wikibase;Entity"/>
   </owl:Class>
 
+  <!--
+  ///////////////////////////////////////////////////////////////////////////////////////
+  //
+  // WikibaseLexeme Properties
+  //
+  ///////////////////////////////////////////////////////////////////////////////////////
+  -->
+
   <owl:ObjectProperty rdf:about="&wikibase;lexicalCategory">
     <rdfs:label>lexicalCategory</rdfs:label>
     <rdfs:comment>Lexeme lexical category.</rdfs:comment>
@@ -482,6 +498,48 @@
     <rdfs:range rdf:resource="&rdf;langString"/>
   </owl:DatatypeProperty>
 
+  <!--
+  ///////////////////////////////////////////////////////////////////////////////////////
+  //
+  // WikibaseLexeme Individuals
+  //
+  ///////////////////////////////////////////////////////////////////////////////////////
+  -->
+
+  <!-- Individual property types added by WikibaseLexeme -->
+
+  <owl:NamedIndividual rdf:about="&wikibase;WikibaseLexeme">
+    <rdfs:label>WikibaseLexeme</rdfs:label>
+    <rdfs:comment>Type for referring to a Wikibase Lexeme.</rdfs:comment>
+    <rdf:type rdf:resource="&wikibase;PropertyType"/>
+  </owl:NamedIndividual>
+
+  <owl:NamedIndividual rdf:about="&wikibase;WikibaseForm">
+    <rdfs:label>WikibaseForm</rdfs:label>
+    <rdfs:comment>Type for referring to a Wikibase Form.</rdfs:comment>
+    <rdf:type rdf:resource="&wikibase;PropertyType"/>
+  </owl:NamedIndividual>
+
+  <owl:NamedIndividual rdf:about="&wikibase;WikibaseSense">
+    <rdfs:label>WikibaseSense</rdfs:label>
+    <rdfs:comment>Type for referring to a Wikibase Sense.</rdfs:comment>
+    <rdf:type rdf:resource="&wikibase;PropertyType"/>
+  </owl:NamedIndividual>
+
+  <!--
+  ///////////////////////////////////////////////////////////////////////////////////////
+  //
+  // EntitySchema Individuals
+  //
+  ///////////////////////////////////////////////////////////////////////////////////////
+  -->
+
+  <owl:NamedIndividual rdf:about="&wikibase;WikibaseEntitySchema">
+    <rdfs:label>EntitySchema</rdfs:label>
+    <rdfs:comment>Type for referring to an EntitySchema</rdfs:comment>
+    <rdf:type rdf:resource="&wikibase;PropertyType"/>
+  </owl:NamedIndividual>
+
   <!--
   ///////////////////////////////////////////////////////////////////////////////////////
   //
@@ -497,6 +555,7 @@
       <rdf:Description rdf:about="&wikibase;Item"/>
       <rdf:Description rdf:about="&wikibase;Lexeme"/>
       <rdf:Description rdf:about="&wikibase;Property"/>
+      <rdf:Description rdf:about="&wikibase;Sense"/>
     </owl:members>
   </rdf:Description>

In T371752#10815713, @Lucas_Werkmeister_WMDE wrote:

Here’s a new merged ontology file for review:

ontology-new.owl21 KBDownload

Differences to the current one, excluding whitespace:
[…]

We seem to have a hard time deciding whether we want Wikibase form or Wikibase Form (same with Lexeme), but I think this is negligible (in rdfs:comment only).

Looks good to me, let's push this ✅

In T371752#10818000, @hoo wrote:

We seem to have a hard time deciding whether we want Wikibase form or Wikibase Form (same with Lexeme), but I think this is negligible (in rdfs:comment only).

Yeah, I just copied that from the WikibaseLexeme file and decided against re-normalizing it 🤷

I’ll email Jon about deploying the new file.

Arian_Bozorg closed subtask T371196: The EntitySchema type URI is missing from the Wikibase ontology as Resolved.May 28 2025, 8:57 AM

Lucas_Werkmeister_WMDE moved this task from Waiting for Deployment Window to Product Verification on the Wikidata-Omega (The Board) board.Jun 5 2025, 10:08 AM

Arian_Bozorg closed this task as Resolved.Jun 6 2025, 1:07 PM

Arian_Bozorg claimed this task.

Arian_Bozorg moved this task from Product Verification to Done - Moving a task here will move it to the completed tasks workboard, resolve the ticket, and assign it to whomever made the move on the Wikidata-Omega (The Board) board.

Lucas_Werkmeister_WMDE edited projects, added Wikidata-Omega (Completed Tasks); removed Wikidata-Omega (The Board).Jun 6 2025, 3:12 PM

karapayneWMDE moved this task from Newly completed tasks to 2025 Q2 on the Wikidata-Omega (Completed Tasks) board.Jun 18 2025, 6:30 AM

	F59933216: ontology-new.owl
	May 13 2025, 10:51 AM

	F57728085: ontology.owl
	Nov 21 2024, 12:01 PM

	F57559257: ontology-1.1.owl
	Sep 26 2024, 1:22 PM

Lexeme/entity schema datatypes are missing from ontology.owlClosed, ResolvedPublicActions

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Lexeme/entity schema datatypes are missing from ontology.owl
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