assertion  retraction  graph  subject       predicate        object        datatype    annotation
1          0           graph  DOID:0080619  rdfs:subClassOf  DOID:0060096  _IRI        
1          0           graph  DOID:0050906  rdfs:subClassOf  DOID:0060096  _IRI        
1          0           graph  DOID:0060096  oio:id           DOID:0060096  xsd:string