assertion  retraction  graph  subject           predicate    object                                                                                                                              datatype    annotation
1          0           graph  obo:SYMP_0000517  IAO:0000115  A respiratory system and chest symptom that is characterized by an expectoration of blood from some part of the respiratory tract.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www2.merriam-webster.com/cgi-bin/mwmednlm?book=Medical&va=hemoptysis""}]}"