| http://www.w3.org/ns/prov#value | - Referring to FIG. 2, an information terminal 101 is an information terminal such as a personal computer or a PDA, and includes a Central Processing Unit (hereinafter, ???CPU???) 141, a main memory 142 (e.g., a Dynamic Random Access Memory (hereinafter, ???DRAM???)), and a first sound device 111 that inputs and outputs a sound.
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