assertion  retraction  graph  subject     predicate        object      datatype    annotation
1          0           graph  DOID:4908   rdfs:subClassOf  DOID:14110  _IRI        
1          0           graph  DOID:14139  rdfs:subClassOf  DOID:14110  _IRI        
1          0           graph  DOID:4067   rdfs:subClassOf  DOID:14110  _IRI        
1          0           graph  DOID:14145  rdfs:subClassOf  DOID:14110  _IRI        
1          0           graph  DOID:4066   rdfs:subClassOf  DOID:14110  _IRI        
1          0           graph  DOID:14110  oio:id           DOID:14110  xsd:string