| http://www.w3.org/ns/prov#value | - ting/outputting audio information, an audio substrate 6132 mounted with a thin IC chip 6134 provided with a memory area in which audio information input through the audio information input/output section 6140 is recorded and circuit elements such as a capacitor and resistor and a first switch 6133 b and a second switch 6133 a electrically connected to the IC chip 6134, flexible paper batteries 613
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