PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • risks ??? and ample benefits ??? from chlorine in drinking water, Greenpeace and other environmental groups have opposed its use for more than 20 years.
http://www.w3.org/ns/prov#wasQuotedFrom
  • akdart.com