| http://www.w3.org/ns/prov#value | - Step S10: as shown in FIG. 6, the image display unit 3 displays six images 30 a to 320 f already inputted along with check boxes 31 a to 31 f for selection, and in response to the display, the user of the device 1 selects N images 30 a, 30 b, 30 e and 30 f (where N is a positive integer, and in this example, N=4) that the user likes by selecting the check boxes 31 a, 31 b,31 e and 31 f in the imag
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