assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:7004  rdfs:subClassOf  DOID:5395  _IRI        
1          0           graph  DOID:6255  rdfs:subClassOf  DOID:5395  _IRI        
1          0           graph  DOID:6275  rdfs:subClassOf  DOID:5395  _IRI        
1          0           graph  DOID:5395  oio:id           DOID:5395  xsd:string  
1          0           graph  DOID:5394  rdfs:subClassOf  DOID:5395  _IRI