assertion  retraction  graph  subject    predicate        object             datatype    annotation
1          0           graph  DOID:1024  oio:hasDbXref    OMIM:613407        xsd:string  
1          0           graph  DOID:1024  rdfs:subClassOf  DOID:104           _IRI        
1          0           graph  DOID:1024  oio:hasDbXref    UMLS_CUI:C0023343  xsd:string  
1          0           graph  DOID:1024  oio:hasDbXref    MESH:D007918       xsd:string