assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:5705  rdfs:subClassOf  DOID:5690  _IRI        
1          0           graph  DOID:5704  rdfs:subClassOf  DOID:5690  _IRI        
1          0           graph  DOID:8233  rdfs:subClassOf  DOID:5690  _IRI        
1          0           graph  DOID:5690  oio:id           DOID:5690  xsd:string