assertion  retraction  graph  subject    predicate    object                                                                                                                             datatype    annotation
1          0           graph  DOID:3133  IAO:0000115  A porphyria that has_symptom abdominal pain, has_symptom neuropathy, has_symptom autonomic instability and has_symptom psychosis.  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:http://en.wikipedia.org/wiki/Porphyria""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www.merckmanuals.com/professional/endocrine_and_metabolic_disorders/porphyrias/acute_porphyrias.html""}]}"