In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a crooked street sign on a damaged sidewalk'. Replace the letter 'm' with 'u' in the sentence.

Answer: a crooked street sign on a dauaged sidewalk


Question: Sentence: 'a group of people riding skis on a snowy surface'. Replace the letter 'p' with 'i' in the sentence.

Answer: a groui of ieoile riding skis on a snowy surface


Question: Sentence: 'a ski slope protrudes through a mountain with many people skiing'. Replace the letter 'p' with 'r' in the sentence.

Answer:
a ski slore rrotrudes through a mountain with many reorle skiing