PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Gluten is a protein found in certain grains---wheat, rye, and barley being the main ones--and products made from them.
http://www.w3.org/ns/prov#wasQuotedFrom
  • food52.com