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xgray: dark wave
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xgray: bumps
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xgray: green wave
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xgray: curve
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xgray: green wave 2
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xgray: yellow wave
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xgray: red wave
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xgray: red red yellow (wall)
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xgray: green wave
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xgray: yellow and red
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xgray: window and wave
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xgray: bench