About: http://webisa.webdatacommons.org/89233858

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 reflection type projection screen is used as a fixed type screen, the base material used should be a material with stiffness, for example, a metal plate such as a steel sheet or an aluminum plate, a wood plate, or a plastic plate.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com