assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:8937  rdfs:subClassOf  DOID:8557  _IRI        
1          0           graph  DOID:8969  rdfs:subClassOf  DOID:8557  _IRI        
1          0           graph  DOID:8858  rdfs:subClassOf  DOID:8557  _IRI        
1          0           graph  DOID:8557  oio:id           DOID:8557  xsd:string  
1          0           graph  DOID:8688  rdfs:subClassOf  DOID:8557  _IRI        
1          0           graph  DOID:8556  rdfs:subClassOf  DOID:8557  _IRI