instruction:
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.
question:
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.
answer:
A mineral is a crystal structure that is a solid.


question:
Question: In a comparison of metals to nonmetals, metals tend to have? 
Answer: greater conductivity and higher melting points than nonmetals. 
Sentence: In a comparison of metals to nonmetals, metals tend to have greater conductivity and higher melting points than nonmetals.
answer:
A metals to nonmetals comparison reveals that metals tend to have greater conductivity and higher melting points that nonmetals.


question:
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.
answer:

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