assertion  retraction  graph  subject    predicate                                         object        datatype    annotation
1          0           graph  DOID:657   <http://www.w3.org/2004/02/skos/core#exactMatch>  MESH:D000236  xsd:string  
1          0           graph  DOID:657   oio:hasDbXref                                     MESH:D000236  xsd:string  
1          0           graph  DOID:5403  oio:hasDbXref                                     MESH:D000236  xsd:string  
1          0           graph  DOID:6204  oio:hasDbXref                                     MESH:D000236  xsd:string  
1          0           graph  DOID:3172  oio:hasDbXref                                     MESH:D000236  xsd:string