| http://www.w3.org/ns/prov#value | - For example, all three sides of a triangular car-top box could have similar sized displays, which would have the advantage of making it computationally easier to have all three displays show the same message when so desired. [0356] Of course, in other embodiments of the invention, a car-top box can use a shape other than a triangular one for its displays.
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