PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Groups such as fluoro, chloro and nitro located at ortho- or para- position of a nucleophilic substituent group such as nitro, cyano or carboxyl group tend to take place a cleophilic substitution reaction easily.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com.au