assertion  retraction  graph  subject       predicate        object    datatype    annotation
1          0           graph  DOID:345      oio:id           DOID:345  xsd:string  
1          0           graph  DOID:9108     rdfs:subClassOf  DOID:345  _IRI        
1          0           graph  DOID:0060095  rdfs:subClassOf  DOID:345  _IRI        
1          0           graph  DOID:363      rdfs:subClassOf  DOID:345  _IRI        
1          0           graph  DOID:2253     rdfs:subClassOf  DOID:345  _IRI        
1          0           graph  DOID:780      rdfs:subClassOf  DOID:345  _IRI