About: http://webisa.webdatacommons.org/215262537

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 foregoing sensors typically incorporate a light source such as a lightemitting diode (LED) placed on one side of the body part, and a photodetector placed on an opposite side of the body part.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es