About: http://webisa.webdatacommons.org/165333189

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	A further consideration is that it may be difficult with existing technology to determine whether two mobile devices, such as a tractor and trailer, are currently coupled to each other, or are simply in the same general vicinity.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com