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| 2 red,1 yellow,and 1 green clips are path, 2 batteries are source,2 lights are load. |
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| 2 red, 1 yellow, 1 green clips are path,1 battery is source, 2 lights are load. |
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| 2 red, and 1 green clips are path, 2 batteries are source, and 2 lights are load. |
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| Green and red alligator clips are path. Duracel battery is source and lightbulb is the load. |
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| Red, black and green clips are path,battery and switch are source, and the light is the load. |
