instruction:
In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
question:
Users roll the ball to position the on-screen pointer , using their thumb , fingers , or commonly the palm of the hand while using the fingertips to press the mouse buttons .
answer:
The user rolls the ball with the thumb , fingers or the palm of the hand to move a cursor .


question:
Space Shuttle " Endeavour " ( Orbiter Vehicle Designation : OV-105 ) is a retired orbiter from NASA 's Space Shuttle program and the fifth and final operational Shuttle built .
answer:
Space Shuttle Endeavour ( OV-105 ) is the fifth space shuttle run by NASA .


question:
Some cultures hold that children who misbehave will receive only a lump of coal from Santa Claus for Christmas in their christmas stockings instead of presents .
answer:

In some cultures , Santa Claus brings coal to misbehaved children for Christmas .