| http://www.w3.org/ns/prov#value | - A method of operating an image display system, said system including a display device having an axis of symmetry, including the steps of:(a) exerting a force on at least one of two human interface portions of a yoke means, said yoke means being mounted to the display device symmetrically with respect to the axis of symmetry with the human interface portions positioned symmetrically with respect to
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