assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:5936  rdfs:subClassOf  DOID:5351  _IRI        
1          0           graph  DOID:7665  rdfs:subClassOf  DOID:5351  _IRI        
1          0           graph  DOID:6774  rdfs:subClassOf  DOID:5351  _IRI        
1          0           graph  DOID:5351  oio:id           DOID:5351  xsd:string  
1          0           graph  DOID:5350  rdfs:subClassOf  DOID:5351  _IRI