PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Calcium is a divalent ion and as ions increase in valence, uptake decreases (Marschner, 1995).
http://www.w3.org/ns/prov#wasQuotedFrom
  • scielo.org.mx