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: Who sings she's in love with the boy?

Answer: Patricia Lynn Yearwood


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

Answer: Nancy Sinatra


Question: When were the first trenches dug in ww1?

Answer:
September 15, 1914