assertion  retraction  graph  subject    predicate      object        datatype    annotation
1          0           graph  DOID:688   oio:hasDbXref  MESH:D009373  xsd:string  
1          0           graph  DOID:2994  oio:hasDbXref  MESH:D009373  xsd:string  
1          0           graph  DOID:3095  oio:hasDbXref  MESH:D009373  xsd:string