assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:2556 IAO:0000115 A chondromalacia that is characterized by recurrent inflammation of cartilage and other tissues throughout the body. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/26711694/""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://rarediseases.info.nih.gov/diseases/7417/relapsing-polychondritis""}]}"