assertion  retraction  graph  subject             predicate        object              datatype    annotation
1          0           graph  obo:UBERON_0007376  rdfs:label       outer epithelium    xsd:string  
1          0           graph  obo:UBERON_0007376  oio:id           UBERON:0007376      xsd:string  
1          0           graph  obo:UBERON_0007376  rdfs:subClassOf  obo:UBERON_0010371  _IRI        
1          0           graph  obo:UBERON_0007376  rdfs:subClassOf  obo:UBERON_0003102  _IRI        
1          0           graph  obo:UBERON_0007376  rdf:type         owl:Class           _IRI