About: http://webisa.webdatacommons.org/2392130

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	For glass, quartz and other materials that are etched, e.g. sand blasted, the raised pads may be specified as a minimum height with varying maximum heights due to variations in the etching procedure.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com