PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ; (4) the willingness of parents to pay an additional sum to protect the world?s population from skin cancer; and (5) how income, family structure and composition, parental education, and other characteristics affect willingness-to-pay, risk beliefs, and risk-related behaviors.
http://www.w3.org/ns/prov#wasQuotedFrom
  • epa.gov