In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a man and a child skiing down a mountain on a trail'. Replace the letter 'n' with 'm' in the sentence.

Answer: a mam amd a child skiimg dowm a moumtaim om a trail


Question: Sentence: 'a couple walking down a sidewalk next to some graffiti'. Replace the letter 'a' with 'y' in the sentence.

Answer: y couple wylking down y sidewylk next to some gryffiti


Question: Sentence: 'a red double decker bus driving past very tall buildings'. Replace the letter 'a' with 't' in the sentence.

Answer:
t red double decker bus driving ptst very ttll buildings