About: http://webisa.webdatacommons.org/437102492

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 shading film 22 is formed of a shading material such as chromium or chromium oxide and serves to prevent a decrease in contrast by shading light.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com