About: http://webisa.webdatacommons.org/392044907

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	Examples of such etchable materials are: glass, metals, silicon or other crystaline material, plastics, and ceramics.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca