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        "http://www.w3.org/ns/prov#value" : [ "The system principally comprises a clock, represented by the block 105, with a triggering lever 106, which is the same lever that triggers the alarm of the clock when set to a desired time, except that in the present invention the alarm lever 106 turns on the awakening signals, with the original alarm means removed from the clock to make the system operate silently." ] ,
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