In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Input: Consider Input: Question: What do craters and rifts become when the fill with water? Answer: lakes

Output: Craters and rifts become lakes when they fill with water.


Input: Consider Input: Question: Chemical reactions follow which laws? Answer: thermodynamics

Output: Chemical reactions follow the laws of thermodynamics.


Input: Consider Input: Question: Most of a mushroom's surface area is actually where? Answer: underground


Output: Most of a mushroom's surface area is actually underground.