In this task, you need to replace a letter in the sentence with another given letter.

Q: Sentence: 'a man who is surfing in a wave in the ocean'. Replace the letter 'a' with 'u' in the sentence.

A: u mun who is surfing in u wuve in the oceun
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Q: Sentence: 'a ski slope consisting of several people wearing skis and snowboards'. Replace the letter 'e' with 's' in the sentence.

A: a ski slops consisting of ssvsral psopls wsaring skis and snowboards
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Q: Sentence: 'a man and a boy are playing a game of ping pong'. Replace the letter 'a' with 'i' in the sentence.

A:
i min ind i boy ire pliying i gime of ping pong
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