assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:7603  rdfs:subClassOf  DOID:7602  _IRI        
1          0           graph  DOID:7602  oio:id           DOID:7602  xsd:string  
1          0           graph  DOID:3377  rdfs:subClassOf  DOID:7602  _IRI        
1          0           graph  DOID:7612  rdfs:subClassOf  DOID:7602  _IRI        
1          0           graph  DOID:6951  rdfs:subClassOf  DOID:7602  _IRI