About: http://webisa.webdatacommons.org/384835117

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 add/drop system according to claim 11 wherein said sensor is a magneto-resistive device for sensing the presence of magnet carried by said optical jumper.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr