PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Ash and silt choked the channel of the Cowlitz River, dropping it to a fifth of its usual flow, while the Columbia River dropped to a depth of only fourteen feet, stranding dozens of oceangoing vessels and killing millions upon millions of salmon and other fish.
http://www.w3.org/ns/prov#wasQuotedFrom
  • britannica.com