PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Early symptoms of carbon monoxide poisoning can be similar to flu symptoms, including headaches, nausea, dizziness and fatigue.
http://www.w3.org/ns/prov#wasQuotedFrom
  • epa.gov