| http://www.w3.org/ns/prov#value | - Accordingly, if the user writes on a writing surface, e.g. a paper, with an inked pen/stylus having a special color point (or a light point), which can write on a real paper, there should be the images of ink traces, the stylus, the ???special color point (or a light point)??? on the stylus and the user's hand actually shown in each frame.
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