About: http://webisa.webdatacommons.org/29464678

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	BACKGROUND OF THE INVENTION [0003] In mobile communications systems, such as the GSM, use of prepaid SIM (Subscriber Identity Module) cards is increasing.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com