assertion  retraction  graph  subject    predicate      object        datatype    annotation
1          0           graph  DOID:5505  oio:hasDbXref  MESH:D004806  xsd:string  
1          0           graph  DOID:4844  oio:hasDbXref  MESH:D004806  xsd:string  
1          0           graph  DOID:5500  oio:hasDbXref  MESH:D004806  xsd:string  
1          0           graph  DOID:5075  oio:hasDbXref  MESH:D004806  xsd:string