About: http://webisa.webdatacommons.org/73042644

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 above-described stacks 400 and 600 are particularly advantageous when constructed with insulating plates, such as sapphire, that are optically transparent.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com