| http://www.w3.org/ns/prov#value | - uding unit prices for the map data stored in the map data storing step, and generating billing information (FIG. 8) including at least the amount of charge; and [0116] a step of transmitting, to the mobile apparatus, a packet including at least the route found in the route searching step, the map data selected in the map data selecting step, and the billing information generated in the billing ste
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