PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For vegetarians there are dietary sources of omega-3 fatty acids especially flax oils, algae oils and nuts and seeds such as walnuts.
http://www.w3.org/ns/prov#wasQuotedFrom
  • medicalxpress.com