assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:14067 IAO:0000115 A malaria described as a severe form of the disease caused by a parasite Plasmodium falciparum, which is marked by irrregular recurrence of paroxysms and prolonged or continuous fever. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007643""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www2.merriam-webster.com/cgi-bin/mwmednlm?book=Medical&va=falciparum+malaria""}]}"