assertion  retraction  graph  subject     predicate        object    datatype  annotation
1          0           graph  DOID:275    rdfs:subClassOf  DOID:255  _IRI      
1          0           graph  DOID:495    rdfs:subClassOf  DOID:255  _IRI      
1          0           graph  DOID:472    rdfs:subClassOf  DOID:255  _IRI      
1          0           graph  DOID:482    rdfs:subClassOf  DOID:255  _IRI      
1          0           graph  DOID:471    rdfs:subClassOf  DOID:255  _IRI      
1          0           graph  DOID:492    rdfs:subClassOf  DOID:255  _IRI      
1          0           graph  DOID:11294  rdfs:subClassOf  DOID:255  _IRI      
1          0           graph  DOID:271    rdfs:subClassOf  DOID:255  _IRI      
1          0           graph  DOID:5241   rdfs:subClassOf  DOID:255  _IRI      
1          0           graph  DOID:490    rdfs:subClassOf  DOID:255  _IRI      
1          0           graph  DOID:8331   rdfs:subClassOf  DOID:255  _IRI      
1          0           graph  DOID:5393   rdfs:subClassOf  DOID:255  _IRI