assertion  retraction  graph  subject             predicate        object              datatype    annotation
1          0           graph  obo:UBERON_0001264  rdfs:label       pancreas            xsd:string  
1          0           graph  obo:UBERON_0001264  oio:id           UBERON:0001264      xsd:string  
1          0           graph  obo:UBERON_0001264  rdfs:subClassOf  obo:UBERON_0002075  _IRI        
1          0           graph  obo:UBERON_0001264  rdf:type         owl:Class           _IRI