About: http://webisa.webdatacommons.org/326989573

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	The transparent sheet is preferably a plastics or polymeric material such as polyvinylchloride, PMMA, polyester, polypropylene.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com