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: What do you call water that flows out of the ground where an aquifer meets the surface? 
Answer: spring. 
Sentence: You call water that flows out of the ground where an aquifer meets the surface a(n) spring.

Answer: A spring is water that flows from the ground where an aquifer meets the surface.


Question: Question: What do metals start out as? 
Answer: ore. 
Sentence: Metals start out as ore.

Answer: Metals are refined from the base material they start as, called ore.


Question: Question: Which of the following is true regarding the properties of an air mass? 
Answer: An air mass has similar temperature and moisture properties throughout it. 
Sentence: One of the properties of an air mass is that an air mass has similar temperature and moisture properties throughout it.

Answer:
Air mass has a property throughout it.  That property is similar temperature and moisture.