PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The richest sources of vitamin A are liver, cod liver oil, butter, and egg yolks.Vitamin A is also found in a variety of dark green and deep orange fruits and vegetables, such as carrots, sweet potatoes, pumpkin, spinach, butternut squash, turnip greens, mustard greens, and romaine lettuce.
http://www.w3.org/ns/prov#wasQuotedFrom
  • naturalnews.com