assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:216 IAO:0000115 A teeth hard tissue disease that is characterized by damage to a tooth that can happen when decay-causing bacteria in your mouth make acids that attack the tooth’s surface, or enamel. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.nidcr.nih.gov/health-info/tooth-decay""}]}"