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: How many babies did dolly the sheep have?

Answer: 6


Question: What's the name for earth's supply of water?

Answer: hydrosphere


Question: Who played the little boy in the movie sling blade?

Answer:
Lucas York Black