About: http://webisa.webdatacommons.org/53486475

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyvinyl pyrrolidone (PVP), polyacrylamide (PA), polyhydroxyethyl methacrylate (PHEMA), and copolymers of the foregoing, are examples of polymers from which hydrogels have been made.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com