
This region should be extendend to infinity in the vertical direction to give a vertical strip in the upper half plane with x between -1 and 1.
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This region should be extendend to infinity in the horizontal direction to give a horizontal strip in the right half plane with y between 0 and 2.
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This region should be extendend to infinity in all directions in the upper half plane.
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This region should not be extended.
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