About: http://webisa.webdatacommons.org/272832471

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 reflective optical sensors in one embodiment use of a light emitting diode, such as a light source, and a photocell or phototransistor, as receiver.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com