About: http://webisa.webdatacommons.org/426659393

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 second substrate is preferably made from a rigid material, including, but not limited to, fused silica, glass, metals, crystalline structures, plastics or other similar materials.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com