About: http://webisa.webdatacommons.org/368285952

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 sensing system according to claim 3, further including means for measuring the earth magnetic field so that background information caused by the earth magnetic field is determined.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com