assertion  retraction  graph  subject     predicate             object             datatype    annotation
1          0           graph  DOID:12663  oio:hasAlternativeId  DOID:13067         xsd:string  
1          0           graph  DOID:12663  oio:hasDbXref         MESH:D001759       xsd:string  
1          0           graph  DOID:12663  oio:hasDbXref         UMLS_CUI:C0005716  xsd:string