assertion  retraction  graph  subject           predicate    object                                                                                                                                                                                                             datatype    annotation
1          0           graph  obo:SYMP_0000614  IAO:0000115  A respiratory system and chest symptom that is characterized by an explosive expulsion of air from the lungs acting as a protective mechanism to clear the air passages or as a symptom of pulmonary disturbance.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www2.merriam-webster.com/cgi-bin/mwmednlm?book=Medical&va=cough""}]}"