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.

Q: Who's the little girl that played in waterworld?

A: Tina Marie Majorino
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Q: Where is the descending aorta located in the mediastinum?

A: posterior mediastinal cavity
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Q: Avengers infinity war first release in which country?

A:
United States of America
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