About: http://webisa.webdatacommons.org/17483363

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	Specifically, an optical sensor may be formed of amorphous silicon, polysilicon (p-Si), single crystal silicon, or other semiconductor materials.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com