About: http://webisa.webdatacommons.org/129794134

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	Silicon is far cheaper than sapphire and other costly materials, but it has the added benefit of being able to utilize existing semiconductor factories.
http://www.w3.org/ns/prov#wasQuotedFrom	elightbulbs.com