PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ere R is alkyl derived from a high molecular weight alcohol, M is a salt-forming cation and r represents an average number of ethylene oxide groups.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com