instruction:
Given a question, generate a paraphrase of that question wihout changing the meaning of it. Your answer should reword the given sentence, but not add information to it or remove information from it. The answer to your question should be the same as the answer to the original question.
question:
Question: what is justin bieber's bieber's birthday?
answer:
when is the birthday of justin bieber?


question:
Question: what is the largest mountain range system in the world?
answer:
what is the largest chain of mountains in the world?


question:
Question: population of erie county new york?
answer:

what is the population of erie county ny?