PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Leafy vegetables such as lettuce and spinach and certain staples such as potatoes and grain foods exhibit relatively high values from 30 to 150 ppb.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cadmium.org