PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Examples of alkyl radicals R1 and R2 are butyl, propyl, ethyl and especially methyl.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com