PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Migraines can often feel like sinus headaches, and even have symptoms such as nasal congestion, sinus pain, or even a runny nose... but they are still migraines.
http://www.w3.org/ns/prov#wasQuotedFrom
  • medhelp.org