About: http://webisa.webdatacommons.org/80638007

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	It can be seen that for altitudes of e.g. 500 m, the mobile unit position error exceeds 20 m for substantial parts of the own cell.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com