PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Gum disease is the active disease so if it is not poor hygiene, it can be due to other risk factors such as smoking, poorly controlled diabetes, etc.
http://www.w3.org/ns/prov#wasQuotedFrom
  • medhelp.org