About: http://webisa.webdatacommons.org/22089354

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 optical card reader would normally include light sources such as represented by a single light emitting diode (LED) 18 for providing light energy.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk