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.

Input: Consider Input: Question: Which is a function of the cardiovascular system? 
Answer: to transport gases throughout the body. 
Sentence: One function of the cardiovascular system is to transport gases throughout the body.

Output: Gases transport via the cardiovascular system.


Input: Consider Input: Question: Which force causes rocks to roll downhill? 
Answer: gravity. 
Sentence: gravity force causes rocks to roll downhill.

Output: A rock rolling downhill is caused by gravity.


Input: Consider Input: Question: Which kind of muscle regulates air flow in lungs? 
Answer: smooth. 
Sentence: Smooth muscle regulates air flow in lungs.


Output: Air flow in lungs is regulated by smooth muscle.