assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:3605  oio:id           DOID:3605  xsd:string  
1          0           graph  DOID:3604  rdfs:subClassOf  DOID:3605  _IRI        
1          0           graph  DOID:5746  rdfs:subClassOf  DOID:3605  _IRI        
1          0           graph  DOID:7438  rdfs:subClassOf  DOID:3605  _IRI