assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:7040  rdfs:subClassOf  DOID:6039  _IRI        
1          0           graph  DOID:7808  rdfs:subClassOf  DOID:6039  _IRI        
1          0           graph  DOID:6039  oio:id           DOID:6039  xsd:string  
1          0           graph  DOID:6566  rdfs:subClassOf  DOID:6039  _IRI        
1          0           graph  DOID:6522  rdfs:subClassOf  DOID:6039  _IRI