| http://www.w3.org/ns/prov#value | - determining that an object, other than said video screen, is being modeled as computer graphics and has moved to a location (i) that is being represented by said video and (ii) at which said object is at least partly occluded from view of a viewer of said world by said video screen although said object should not appear occluded to said viewer when at said location; changing the representation of
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