<http://webisa.webdatacommons.org/270217417> <http://www.w3.org/ns/prov#value> "In the above configuration, the SGSN 131 of the GPRS 130 performs functions, such as packet routing and transmission, mobility management, logical link management, authentication and billing." . <http://webisa.webdatacommons.org/270217417> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/270217417> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.com> . <http://webisa.webdatacommons.org/prov/426675353> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/270217417> . <http://webisa.webdatacommons.org/prov/101863358> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/270217417> .