About: http://webisa.webdatacommons.org/281329526

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 cover may be, for example, a rigid sheet of transparent material, for example glass or a plastics material such as polycarbonate.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com