knowledge graph gene ontology cyc f o a f (ontology) schema.org gene ontology term enrichment ontology components knowledge engineering semantic reasoner formal concept analysis protégé (software) foundational model of anatomy allegro graph infosphere domain engineering semantic matching tbox abox linguistic categories ontology alignment process ontology human phenotype ontology basic formal ontology olog d o a p swoogle ontology-based data integration o b o foundry knowledge interchange format v i v o (software) suggested upper merged ontology semantically- interlinked online communities disease ontology open semantic framework onto u m l
Philosophy_Ontology