assertion  retraction  graph  subject       predicate                                         object     datatype    annotation
1          0           graph  DOID:0070475  <http://www.w3.org/2004/02/skos/core#exactMatch>  NCI:C7572  xsd:string  
1          0           graph  DOID:0070475  oio:hasDbXref                                     NCI:C7572  xsd:string