assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:1659  oio:id           DOID:1659  xsd:string  
1          0           graph  DOID:3843  rdfs:subClassOf  DOID:1659  _IRI        
1          0           graph  DOID:3644  rdfs:subClassOf  DOID:1659  _IRI        
1          0           graph  DOID:368   rdfs:subClassOf  DOID:1659  _IRI        
1          0           graph  DOID:7502  rdfs:subClassOf  DOID:1659  _IRI        
1          0           graph  DOID:4791  rdfs:subClassOf  DOID:1659  _IRI