| http://www.w3.org/ns/prov#value | - However, it may occur that the user inadvertently turns off the switch (K5 in FIGS. 6 and 7) of the pointer or other person intercepts the space between the pointer and the large screen display device so that the pointing information is temporarily extinguished and the point or object which is different from that the user wanted to point may be recognized as the pointed area.
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