| http://www.w3.org/ns/prov#value | - With reference to FIG. 13, the video signal 61 b, reference position information 633 b, relative position information 634 b and the size information 632 b are a signal and attendant information 63 from the second demodulator circuit 212; and the video signal 61 c, reference position information 633 c, relative position information 634 c and the size information 632 c are a signal and attendant inf
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