assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:7907  rdfs:subClassOf  DOID:5076  _IRI        
1          0           graph  DOID:7817  rdfs:subClassOf  DOID:5076  _IRI        
1          0           graph  DOID:7912  rdfs:subClassOf  DOID:5076  _IRI        
1          0           graph  DOID:5076  oio:id           DOID:5076  xsd:string