About: http://webisa.webdatacommons.org/55910334

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	Further, the magnetic field sensor can be used to pick up magnetic fields that are of interest and which are generated by other sources, for example a signal that is generated by a buried line for purposes of collision avoidance.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es