You are given a question, its answer, and a sentence that supports the question, i.e., the answer to the question is inferable from the sentence. In this task, you need to paraphrase the given sentence so that the paraphrased sentence still supports the question i.e. you can still infer the answer to the question from the paraphrased sentence. Do not write a paraphrase with a minor change in the given sentence e.g. replacing the word "one" with "a". Instead, try to write a paraphrase that contains new words, i.e. the words that are not present in the input sentence.

Ex Input:
Question: What type of mirror is shaped like the outside of a bowl? 
Answer: convex. 
Sentence: A convex mirror is shaped like the outside of a bowl.

Ex Output:
A mirror is convex when it is shaped like the outside of a bowl.


Ex Input:
Question: The sum of all chemical reactions that take place within an organism is known as? 
Answer: metabolism. 
Sentence: The sum of all chemical reactions that take place within an organism is known as metabolism.

Ex Output:
An organism's metabolism is determined by the breakdown of all chemical reactions operating within the body.


Ex Input:
Question: Which of the following has changed over the last 200 years primarily due to human activity? 
Answer: the composition of the atmosphere. 
Sentence: The composition of the atmosphere has changed over the last 200 years primarily due to human activity.

Ex Output:

Atmospheric composition has changed over the past 200 years primarily due to human activity.