PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As a result of ozone layer depletion, it is becoming increasingly necessary to measure and monitor the ozone layer, along with harmful UV radiation levels in populated areas for preventing such ailments as skin cancer and cataracts.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com