| http://www.w3.org/ns/prov#value | - As a method for such a determination of the shortest distance from the route up to each of the program guidance position data, as an example, there is a method illustrated in FIG. 30 in which an orthogonal line originating at each of the program guidance position data and forming a right angle with the route is drawn, and the length of the drawn line between them is calculated as the distance.
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