About: http://webisa.webdatacommons.org/92591670

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	A mask is a material used as a protective cover for subsequent processing.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com