| http://www.w3.org/ns/prov#value | - If the measurement starting point 60A cannot be detected due to an obstruction such as sand or water, another measurement starting point is selected and detected in an order of precedence of 60B, 60C, 60D.Further, as shown in FIG. 11, when the ???pedestrian crossing ahead??? road marking 60 classified into the wear pattern 4 is recognized as the road marking positioned on the periphery of the vehi
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