| http://www.w3.org/ns/prov#value | - 2) when, while a road on which map matching is to be performed by the first map matching processing is being recognized, the distance between the actual vehicle position obtained by the first map matching processing (MM1) and the temporary vehicle position obtained by the second map matching processing (MM2) becomes equal to or greater than a predetermined distance, e.g. 300 m,
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