Wikidata:WikiProject Ontology/Problems/instance of 2nd-order subclass of self

instance of 2nd-order subclass of self[edit]

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WDQS | PetScan | TABernacle | Find images | Recent changes | Query: SELECT ?item WHERE { ?item wdt:P31/wdt:P279/wdt:P279 ?item . }

label	description	instance of	subclass of	item
electromechanical device	device that uses electrical and mechanical components	Wikidata metaclass relay	electrical device mechanical device	Q102110916
Arab nationalism	political ideology	political ideology political movement Arab socialism	nationalism	Q114213
transformer	electrical device that transfers energy through electromagnetic induction from one circuit to another circuit	electrical element current transformer voltage transformer	electrical element passive electronic component	Q11658
direct and indirect contact transmission		mode of transmission	horizontal transmission	Q2246475
direct transmission	type of infectious agent transmission process	biological process mode of transmission	horizontal transmission	Q15304504
metaclass	in knowledge representation, a class which has instances that are themselves classes	concept formal ontology concept variable-order class	class	Q19478619
entity	anything that can be considered, discussed, or observed	variable-order class counting unit	No/unknown value	Q35120
Wikidata metaclass	class of classes, class whose instances are classes	third-order class	metaclass class or metaclass of Wikidata ontology	Q19361238

End of automatically generated list.