PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Since about a year ago, I have been having symptoms such as heart palpitations, feelings of vertigo, brain fog, headaches.
http://www.w3.org/ns/prov#wasQuotedFrom
  • medhelp.org