assertion  retraction  graph  subject     predicate      object                            datatype    annotation
1          0           graph  DOID:1731   oio:hasDbXref  SNOMEDCT_US_2023_03_01:266218008  xsd:string  
1          0           graph  DOID:13564  oio:hasDbXref  SNOMEDCT_US_2023_03_01:266218008  xsd:string  
1          0           graph  DOID:13450  oio:hasDbXref  SNOMEDCT_US_2023_03_01:266218008  xsd:string