PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Still more particularly are the compounds where only one of R5, R6, R7, and R8 is not hydrogen, especially R7.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com