assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:2871  rdfs:subClassOf  DOID:1380  _IRI        
1          0           graph  DOID:7139  rdfs:subClassOf  DOID:1380  _IRI        
1          0           graph  DOID:5631  rdfs:subClassOf  DOID:1380  _IRI        
1          0           graph  DOID:5166  rdfs:subClassOf  DOID:1380  _IRI        
1          0           graph  DOID:1380  oio:id           DOID:1380  xsd:string  
1          0           graph  DOID:3590  rdfs:subClassOf  DOID:1380  _IRI