PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Transforming the Martian regolith into soil should be possible with water, organic material, bacteria, and some chemical treatment, for example to adjust the pH.
http://www.w3.org/ns/prov#wasQuotedFrom
  • etcjournal.com