| http://www.w3.org/ns/prov#value | - Thus, the intelligent data carrier 20A can be made very small and light. [0149] Alternatively, as for the power supply for the intelligent data carrier, various supply source such as various kinds of batteries, solar battery, means for transforming from individual temperature to the power, and means for transforming kinetic energy by movement of the individual to the power, can be used. [0150] Whe
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