sentence: In the future , water will be very expensive to the extent that you will have to work three hours of overtime every day to be able to pay for half a liter of clean water . But the one thing that will never change in the future is the smile on your mother 's face when you surprise her by cleaning your bedroom without using the robot that belongs to your older brother .
modified: In the future water will be very expensive to the extent that you will have to work three hours of overtime everyday to be able to pay for half a liter of clean water , but the one thing that will never change in the future is the smile on your mother 's face when you surprise her by cleaning your bedroom without using the robot that belongs to your older brother .
transformation: PUNCT, ORTH, PUNCT