assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:1357  oio:id           DOID:1357  xsd:string  
1          0           graph  DOID:7910  rdfs:subClassOf  DOID:1357  _IRI        
1          0           graph  DOID:4003  rdfs:subClassOf  DOID:1357  _IRI        
1          0           graph  DOID:7684  rdfs:subClassOf  DOID:1357  _IRI        
1          0           graph  DOID:7198  rdfs:subClassOf  DOID:1357  _IRI