assertion  retraction  graph  subject          predicate        object           datatype  annotation
1          0           graph  DOID:10952       rdfs:subClassOf  DOID:557         _IRI      
1          0           graph  DOID:11920       rdfs:subClassOf  DOID:0050615     _IRI      
1          0           graph  DOID:11920       rdfs:subClassOf  DOID:3225        _IRI      
1          0           graph  DOID:1138        rdfs:subClassOf  DOID:3565        _IRI      
1          0           graph  DOID:1138        rdfs:subClassOf  DOID:1140        _IRI      
1          0           graph  DOID:2348        rdfs:subClassOf  DOID:2349        _IRI      
1          0           graph  DOID:4768        rdfs:subClassOf  DOID:4765        _IRI      
1          0           graph  DOID:4647        rdfs:subClassOf  DOID:768         _IRI      
1          0           graph  DOID:3316        rdfs:subClassOf  DOID:175         _IRI      
1          0           graph  DOID:3316        rdfs:subClassOf  DOID:201         _IRI      
1          0           graph  DOID:5615        rdfs:subClassOf  DOID:5612        _IRI      
1          0           graph  obo:CHEBI_33358  rdfs:subClassOf  obo:CHEBI_33561  _IRI      
1          0           graph  DOID:1357        rdfs:subClassOf  DOID:0050619     _IRI      
1          0           graph  DOID:1115        rdfs:subClassOf  DOID:0050687     _IRI      
1          0           graph  DOID:4866        rdfs:subClassOf  DOID:0050904     _IRI      
1          0           graph  DOID:5834        rdfs:subClassOf  DOID:2998        _IRI      
1          0           graph  DOID:5834        rdfs:subClassOf  DOID:2994        _IRI      
1          0           graph  DOID:0081076     rdfs:subClassOf  DOID:12603       _IRI      
1          0           graph  DOID:5713        rdfs:subClassOf  DOID:3382        _IRI      
1          0           graph  DOID:1588        rdfs:subClassOf  DOID:2218        _IRI