About: http://webisa.webdatacommons.org/178669734

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 black mask 6 is provided in order to shut off regions other than pixel regions and is made, for example, of a film of a metal such as Cr or Mo.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com