ericP added a comment.
For reasons that I believe have to do with additional data not changing already inferred facts (AKA monotonicity), certain OWL constructs MUST be expressed as a blank node. I think it's a great idea to remove blank notes wherever possible in wikidata but if you want the data to be conformant with OWL (and thus work in e.g. Protégé, OWLAPI, and some other tools), I believe you are stick using blank nodes for some OWL expressions <https://www.w3.org/TR/owl2-mapping-to-rdf/#Axioms_Represented_by_Blank_Nodes>. TASK DETAIL https://phabricator.wikimedia.org/T244341 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: ericP Cc: ericP, JMinor, TomT0m, Gehel, Multichill, Pfps, Mmarx, Dipsacus_fullonum, Luitzen, VladimirAlexiev, Lea_Lacroix_WMDE, Jheald, Daniel_Mietchen, mkroetzsch, Denny, Lucas_Werkmeister_WMDE, Aklapper, dcausse, CBogen, Akuckartz, Viztor, 94rain, Nandana, Namenlos314, Lahi, Gq86, GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, Snowolf, aude, Tobias1984, Manybubbles, Shizhao, Mbch331, Rxy
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