assertion  retraction  graph  subject     predicate        object     datatype    annotation
1          0           graph  DOID:11819  rdfs:subClassOf  DOID:3996  _IRI        
1          0           graph  DOID:734    rdfs:subClassOf  DOID:3996  _IRI        
1          0           graph  DOID:3996   oio:id           DOID:3996  xsd:string  
1          0           graph  DOID:11054  rdfs:subClassOf  DOID:3996  _IRI        
1          0           graph  DOID:263    rdfs:subClassOf  DOID:3996  _IRI