assertion  retraction  graph  subject       predicate        object     datatype    annotation
1          0           graph  DOID:0050523  rdfs:subClassOf  DOID:5603  _IRI        
1          0           graph  DOID:0080145  rdfs:subClassOf  DOID:5603  _IRI        
1          0           graph  DOID:0050751  rdfs:subClassOf  DOID:5603  _IRI        
1          0           graph  DOID:5603     oio:id           DOID:5603  xsd:string  
1          0           graph  DOID:5602     rdfs:subClassOf  DOID:5603  _IRI