About: http://webisa.webdatacommons.org/9580353

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	Smartphones pop on the network and then drop off as people switch from 3G to Wi-Fi and back, or disappear entirely as they enter elevators and other areas where there is no service.
http://www.w3.org/ns/prov#wasQuotedFrom	informationweek.com