In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.
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Question: Rotating part of dc motor is known as?

Answer: armature


Question: Who sang these boots were made for walking first?

Answer: Nancy Sinatra


Question: Where is most farming done in the us?

Answer:
west of the Great Lakes and east of the Rocky Mountains