PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Several organizations, such as the World Cancer Research Institute, World Health Organization, and American Cancer Society, recommend getting beta-carotene from whole, fresh foods.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wisegeek.com