assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:5282  rdfs:subClassOf  DOID:4054  _IRI        
1          0           graph  DOID:7152  rdfs:subClassOf  DOID:4054  _IRI        
1          0           graph  DOID:4524  rdfs:subClassOf  DOID:4054  _IRI        
1          0           graph  DOID:3252  rdfs:subClassOf  DOID:4054  _IRI        
1          0           graph  DOID:4054  oio:id           DOID:4054  xsd:string