assertion retraction graph subject predicate object datatype annotation 1 0 graph obo:UBERON_0004119 rdfs:label endoderm-derived structure xsd:string 1 0 graph obo:UBERON_0004119 oio:id UBERON:0004119 xsd:string 1 0 graph obo:UBERON_0004119 rdfs:subClassOf obo:UBERON_0000061 _IRI 1 0 graph obo:UBERON_0004119 rdf:type owl:Class _IRI