PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It has long been recognised that these nutrients such as nitrate and phosphate are essential in maintaining primary production within the world???s oceans, and are required by phytoplankton to build biomolecules such as proteins.
http://www.w3.org/ns/prov#wasQuotedFrom
  • liv.ac.uk