Knock on a motorcycle helmet:
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Tricycle starts, drives away
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Moves, jamming, The motorcycle starts
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Long relocation,, Cross-country motorcycle
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The motorcycle ignition key is inserted,
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Gas, Cross-country motorcycle starts up
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Motorcycle signal
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Harley-Davidson motorcycle starts, waits,
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Expects to jam, Tricycle starts up
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Snowmobile starts, expects to jam
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Tricycle approaching, jamming
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Snowmobile leaves fast
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Jamming, gas repacking, Motorcycle starts
★★★★★