PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • if no benzo group is present in the hindered amine, at least one of R1, R2, R3, and R4 is an alkyl group or an electron donating group; and
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es