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 has the most atp masters 1000 titles?

Answer: Rafael Nadal


Question: How many episodes of season 11 of x files?

Answer: 10


Question: Who plays balon greyjoy in game of thrones?

Answer:
Patrick Gerald Duggan