About: http://webisa.webdatacommons.org/15524513

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	Though wetting agents such as polyvinyl alcohol and polyvinylpyrrolidone are incorporated into hydrogel matrices, they are synthetic polymers not readily found in nature.
http://www.w3.org/ns/prov#wasQuotedFrom	clspectrum.com