assertion  retraction  graph  subject       predicate        object        datatype    annotation
1          0           graph  DOID:0070004  oio:id           DOID:0070004  xsd:string  
1          0           graph  DOID:0080164  rdfs:subClassOf  DOID:0070004  _IRI        
1          0           graph  DOID:2226     rdfs:subClassOf  DOID:0070004  _IRI        
1          0           graph  DOID:9538     rdfs:subClassOf  DOID:0070004  _IRI        
1          0           graph  DOID:4972     rdfs:subClassOf  DOID:0070004  _IRI        
1          0           graph  DOID:4971     rdfs:subClassOf  DOID:0070004  _IRI