assertion  retraction  graph  subject       predicate        object        datatype  annotation
1          0           graph  DOID:8802     rdfs:subClassOf  DOID:3225     _IRI      
1          0           graph  DOID:8802     rdfs:subClassOf  DOID:8719     _IRI      
1          0           graph  DOID:0060086  rdfs:subClassOf  DOID:229      _IRI      
1          0           graph  DOID:0060086  rdfs:subClassOf  DOID:0050622  _IRI      
1          0           graph  DOID:1289     rdfs:subClassOf  DOID:331      _IRI      
1          0           graph  DOID:4556     rdfs:subClassOf  DOID:3908     _IRI      
1          0           graph  DOID:3225     rdfs:subClassOf  DOID:974      _IRI      
1          0           graph  DOID:4435     rdfs:subClassOf  DOID:3842     _IRI      
1          0           graph  DOID:4435     rdfs:subClassOf  DOID:3565     _IRI      
1          0           graph  DOID:5766     rdfs:subClassOf  DOID:255      _IRI      
1          0           graph  DOID:5766     rdfs:subClassOf  DOID:3683     _IRI      
1          0           graph  DOID:6976     rdfs:subClassOf  DOID:6477     _IRI      
1          0           graph  DOID:5524     rdfs:subClassOf  DOID:1749     _IRI      
1          0           graph  DOID:5524     rdfs:subClassOf  DOID:8858     _IRI      
1          0           graph  DOID:5403     rdfs:subClassOf  DOID:3918     _IRI      
1          0           graph  DOID:5403     rdfs:subClassOf  DOID:0060084  _IRI      
1          0           graph  DOID:6613     rdfs:subClassOf  DOID:5402     _IRI      
1          0           graph  DOID:0060075  rdfs:subClassOf  DOID:1612     _IRI      
1          0           graph  DOID:3698     rdfs:subClassOf  DOID:4896     _IRI      
1          0           graph  DOID:3698     rdfs:subClassOf  DOID:3030     _IRI