assertion  retraction  graph  subject          predicate        object           datatype  annotation
1          0           graph  DOID:7142        rdfs:subClassOf  DOID:3284        _IRI      
1          0           graph  DOID:10290       rdfs:subClassOf  DOID:0060058     _IRI      
1          0           graph  DOID:10290       rdfs:subClassOf  DOID:10283       _IRI      
1          0           graph  DOID:8352        rdfs:subClassOf  DOID:520         _IRI      
1          0           graph  DOID:8352        rdfs:subClassOf  DOID:175         _IRI      
1          0           graph  DOID:8110        rdfs:subClassOf  DOID:3502        _IRI      
1          0           graph  obo:CHEBI_28593  rdfs:subClassOf  obo:CHEBI_51323  _IRI