<http://webisa.webdatacommons.org/130945123>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/156183207>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/130945123> .
<http://webisa.webdatacommons.org/130945123>	<http://www.w3.org/ns/prov#value>	"A light source, such as a light emitting diode, is on one side of the disc and a light sensor on the other side." .
<http://webisa.webdatacommons.org/130945123>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .