assertion  retraction  graph  subject             predicate        object                      datatype    annotation
1          0           graph  obo:UBERON_0000465  rdfs:label       material anatomical entity  xsd:string  
1          0           graph  obo:UBERON_0000465  oio:id           UBERON:0000465              xsd:string  
1          0           graph  obo:UBERON_0000465  rdfs:subClassOf  obo:UBERON_0001062          _IRI        
1          0           graph  obo:UBERON_0000465  rdf:type         owl:Class                   _IRI