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.

Example Input: Question: What type of lens is thicker at the edges than it is in the middle? 
Answer: concave lens. 
Sentence: A concave lens is thicker at the edges than it is in the middle.
Example Output: A concave leans comparatively thin in the middle but outer corners are thicker.

Example Input: Question: How does the water cycle end? 
Answer: it repeats itself. 
Sentence: The water cycle ends with it repeats itself.
Example Output: Cycles repeat themselves when they end, and the water cycle is no different.

Example Input: Question: Which of the following best describes a mineral? 
Answer: a solid natural material with a crystal structure. 
Sentence: a solid natural material with a crystal structure  best describes a mineral.
Example Output:
A mineral is a crystal structure that is a solid.