If you place one finger behind the piece of paper and move your head to the left and right, where does your finger appear to be located with respect to the piece of paper?
If you place one finger in front of the piece of paper and move your head to the left and right, where does your finger appear to be located with respect to the piece of paper?
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If you place one finger behind the piece of paper and move your head to the left and right, where do...
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