Boat is moving slowly:
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Yacht moves
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Morse code,, Captain’s cabin
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Movement, Water motor
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Tug awaits, moves
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Jammed, The boat gets into the docks
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A motor boat swims past fast
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Jamming, The yacht is sailing
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The sound of water, The boat moves slowly
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Horn of the ship, ship
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Moves, Ferry, close the ramp
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The horn of the ship
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Jammed, Motor boat moves
★★★★★