PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The urea cycle is an important process that helps remove waste products, such as ammonia, from the blood stream.
http://www.w3.org/ns/prov#wasQuotedFrom
  • raisinrack.com