PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, these studies leave open the question of whether deepening of sleep is a cause or an effect of hypoglycemia.
http://www.w3.org/ns/prov#wasQuotedFrom
  • biology-online.org