assertion  retraction  graph  subject       predicate                                         object        datatype    annotation
1          0           graph  DOID:0060901  oio:hasDbXref                                     MESH:D008258  xsd:string  
1          0           graph  DOID:0060901  <http://www.w3.org/2004/02/skos/core#exactMatch>  MESH:D008258  xsd:string