assertion  retraction  graph  subject     predicate        object     datatype    annotation
1          0           graph  DOID:1532   oio:id           DOID:1532  xsd:string  
1          0           graph  DOID:4765   rdfs:subClassOf  DOID:1532  _IRI        
1          0           graph  DOID:5157   rdfs:subClassOf  DOID:1532  _IRI        
1          0           graph  DOID:6564   rdfs:subClassOf  DOID:1532  _IRI        
1          0           graph  DOID:10195  rdfs:subClassOf  DOID:1532  _IRI        
1          0           graph  DOID:7474   rdfs:subClassOf  DOID:1532  _IRI