| http://www.w3.org/ns/prov#value | - Unlike an output accessory which may require only passive viewing by a user, e.g., a monitor 3 which may deliver a constant force to the bracket from about 5 to about 30 pounds, an input accessory, e.g. a keyboard or mouse, may deliver a variable force to the roller assembly 30 to which it is attached, for example, because the user rests the weight of his arms or hands onto the accessory or becaus
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