http://purl.obolibrary.org/obo/bfo.owl | rdfs:isDefinedBy | : specification/https://github.com/BFO-ontology/BFO/tree/master/src/ontology/owl-group/ Create a prefix for https://github.com/BFO-ontology/BFO/tree/master/src/ontology/owl-group/ Hit Enter to save Double click to create a prefix | graph:default |