assertion  retraction  graph  subject           predicate        object            datatype  annotation
1          0           graph  DOID:3965         rdfs:subClassOf  DOID:3451         _IRI      
1          0           graph  DOID:2634         rdfs:subClassOf  DOID:657          _IRI      
1          0           graph  DOID:2513         rdfs:subClassOf  DOID:3451         _IRI      
1          0           graph  DOID:3723         rdfs:subClassOf  DOID:3721         _IRI      
1          0           graph  DOID:4933         rdfs:subClassOf  DOID:4934         _IRI      
1          0           graph  DOID:4933         rdfs:subClassOf  DOID:299          _IRI      
1          0           graph  DOID:4812         rdfs:subClassOf  DOID:4813         _IRI      
1          0           graph  obo:SYMP_0000488  rdfs:subClassOf  obo:SYMP_0000462  _IRI      
1          0           graph  obo:SYMP_0000367  rdfs:subClassOf  obo:SYMP_0000486  _IRI      
1          0           graph  obo:CHEBI_35701   rdfs:subClassOf  obo:CHEBI_36963   _IRI      
1          0           graph  DOID:0050893      rdfs:subClassOf  DOID:657          _IRI      
1          0           graph  DOID:0050893      rdfs:subClassOf  DOID:0080640      _IRI      
1          0           graph  DOID:2986         rdfs:subClassOf  DOID:2921         _IRI      
1          0           graph  DOID:4922         rdfs:subClassOf  DOID:3458         _IRI      
1          0           graph  DOID:0080164      rdfs:subClassOf  DOID:0070004      _IRI      
1          0           graph  obo:SYMP_0000598  rdfs:subClassOf  obo:SYMP_0000514  _IRI      
1          0           graph  DOID:0081253      rdfs:subClassOf  DOID:0080890      _IRI      
1          0           graph  obo:SYMP_0000114  rdfs:subClassOf  obo:SYMP_0019139  _IRI      
1          0           graph  obo:CHEBI_24921   rdfs:subClassOf  obo:CHEBI_22315   _IRI      
1          0           graph  DOID:1523         rdfs:subClassOf  DOID:0060058      _IRI