In this task, you are given a fact statement and question based on the fact. Your task is to generate the correct answer for the question. The answer needs to be generated using the context fact statement.

Input: Consider Input: Fact: a plant 's roots slowly break down rocks as the roots grow. Question: A cypress tree's stout roots splitting asphalt is an example of?

Output: weathering


Input: Consider Input: Fact: An example of weathering is when a plant root grows into a crack in rock. Question: Weathering could be?

Output: changing a statue to dust


Input: Consider Input: Fact: renewable resources can be used over again. Question: What can be used more than one time?


Output: soda bottle