About: http://webisa.webdatacommons.org/42025583

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	If the matrix material is an adhesive or rigid material such as epoxy or glass, then the protective layer is not needed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com