assertion  retraction  graph  subject    predicate    object                                                                                                                         datatype    annotation
1          0           graph  DOID:8997  IAO:0000115  A myeloproliferative neoplasm characterized by erythroid hyperplasia, myeloid leukocytosis, thrombocytosis, and splenomegaly.  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007637""},{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007638""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://en.wikipedia.org/wiki/Polycythemia_vera""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://rarediseases.info.nih.gov/diseases/7422/polycythemia-vera""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.mayoclinic.org/diseases-conditions/polycythemia-vera/symptoms-causes/syc-20355850""}]}"