assertion  retraction  graph  subject     predicate        object   datatype    annotation
1          0           graph  DOID:2887   rdfs:subClassOf  DOID:47  _IRI        
1          0           graph  DOID:47     oio:id           DOID:47  xsd:string  
1          0           graph  DOID:2883   rdfs:subClassOf  DOID:47  _IRI        
1          0           graph  DOID:14654  rdfs:subClassOf  DOID:47  _IRI        
1          0           graph  DOID:8634   rdfs:subClassOf  DOID:47  _IRI        
1          0           graph  DOID:11132  rdfs:subClassOf  DOID:47  _IRI        
1          0           graph  DOID:10283  rdfs:subClassOf  DOID:47  _IRI