PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Q1 and Q2 independently of one another particularly preferably represent hydrogen, methyl, ethyl, trifluoromethyl, methoxy or ethoxy,
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com