assertion  retraction  graph  subject     predicate        object     datatype    annotation
1          0           graph  DOID:2218   rdfs:subClassOf  DOID:1247  _IRI        
1          0           graph  DOID:1247   oio:id           DOID:1247  xsd:string  
1          0           graph  DOID:12259  rdfs:subClassOf  DOID:1247  _IRI        
1          0           graph  DOID:12531  rdfs:subClassOf  DOID:1247  _IRI        
1          0           graph  DOID:12134  rdfs:subClassOf  DOID:1247  _IRI        
1          0           graph  DOID:2452   rdfs:subClassOf  DOID:1247  _IRI