| http://www.w3.org/ns/prov#value | - ced. [0005] Digitized video signal and aural signal or a program are plentifully provided via a recording medium such as the Internet and a compact disc read only memory (CD-ROM) and digitized software provided via the Internet, CD-ROM and others is widely utilized using a personal computer and others. [0006] However, in the meantime, there is a problem that software plentifully provided as descri
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