assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:7492  rdfs:subClassOf  DOID:6193  _IRI        
1          0           graph  DOID:7095  rdfs:subClassOf  DOID:6193  _IRI        
1          0           graph  DOID:6193  oio:id           DOID:6193  xsd:string  
1          0           graph  DOID:8282  rdfs:subClassOf  DOID:6193  _IRI        
1          0           graph  DOID:6988  rdfs:subClassOf  DOID:6193  _IRI