assertion  retraction  graph  subject    predicate                                         object        datatype    annotation
1          0           graph  DOID:3204  oio:hasDbXref                                     MESH:C536641  xsd:string  
1          0           graph  DOID:3204  <http://www.w3.org/2004/02/skos/core#exactMatch>  MESH:C536641  xsd:string