assertion  retraction  graph  subject     predicate        object    datatype    annotation
1          0           graph  DOID:848    oio:id           DOID:848  xsd:string  
1          0           graph  DOID:9008   rdfs:subClassOf  DOID:848  _IRI        
1          0           graph  DOID:7148   rdfs:subClassOf  DOID:848  _IRI        
1          0           graph  DOID:13189  rdfs:subClassOf  DOID:848  _IRI        
1          0           graph  DOID:8398   rdfs:subClassOf  DOID:848  _IRI        
1          0           graph  DOID:6196   rdfs:subClassOf  DOID:848  _IRI