PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, this strain is particularly difficult to grow because of the need to control environmental parameters and the dual-stage growth process necessary to induce astaxanthin production within the algae.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com