assertion retraction graph subject predicate object datatype annotation 1 0 graph obo:UBERON_0000002 rdfs:label uterine cervix xsd:string 1 0 graph obo:UBERON_0000002 oio:id UBERON:0000002 xsd:string 1 0 graph obo:UBERON_0000002 rdfs:subClassOf obo:UBERON_0005156 _IRI 1 0 graph obo:UBERON_0000002 rdfs:subClassOf obo:UBERON_0001560 _IRI 1 0 graph obo:UBERON_0000002 rdf:type owl:Class _IRI