In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a yellow fire truck parked in a parking lot'. Replace the letter 'a' with 'y' in the sentence.

Answer: y yellow fire truck pyrked in y pyrking lot


Question: Sentence: 'a couple of kids with rackets on a court'. Replace the letter 'u' with 'd' in the sentence.

Answer: a codple of kids with rackets on a codrt


Question: Sentence: 'a child kneels on a surf board as he rides a wave'. Replace the letter 'r' with 'y' in the sentence.

Answer:
a child kneels on a suyf boayd as he yides a wave