PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In rockwool and other fibrous materials, water is held in large pores at contact points between the particles.
http://www.w3.org/ns/prov#wasQuotedFrom
  • greenhousegrower.com