Lab accident:
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The subject falls on the wooden floor.
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Ax strike on a wooden subject
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Open wooden box
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Laboratory experiment
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Throw it on the floor, Shake the bag
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Warning system, male voice, numerical
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Knocking, blowing into the microphone,
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Organ plays, Church, small crowd
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Dance school, instructor, girls
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Flag flapping in the wind
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Stir the liquid in a beaker, Chemistry
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Squatting the Mat (2 seconds)
★★★★★