About: http://webisa.webdatacommons.org/178243719

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 cover plate CD may also be composed of polymer; however it is also feasible to use materials such as quartz glass (silicon dioxide) and silicon or other materials with low optical attenuation for the substrate and cover plate.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr