Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Input: Consider Input: A penguin must do increase muscle mass before molting.

Output: A penguin must do what before molting?


Input: Consider Input: The correct order of food traveling through the digestive system after it is swallowed is: esophagus, stomach, small intestine, large intestine.

Output: Which list gives the correct order of food traveling through the digestive system after it is swallowed?


Input: Consider Input: The temperature at which all molecular motion has ceased is called absolute zero.


Output: The temperature at which all molecular motion has ceased is called what?