Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.

Input: Consider Input: Fact: An object's shape can be changed by removing material. 
Question: What is one way an object's shape can be changed?

Output: removing material.


Input: Consider Input: Fact: force causes the speed of a crystal ball to increase. 
Question: What can force affect the speed of?

Output: a crystal ball.


Input: Consider Input: Fact: air does not accept heat very well. 
Question: what does not accept heat very well?


Output: air.