PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In the article, C&EN Senior Editor Alexander H. Tullo explains that a golden age of polymers, spanning the late 1930s through the mid-1960s, engendered nylon, polyethylene, polypropylene, polycarbonate, polyester, and other plastics that have replaced everything from silk to steel in everyday products.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org