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

Q: Sentence: 'a dog with his tongue out riding on a skateboard'. Replace the letter 's' with 'b' in the sentence.

A: a dog with hib tongue out riding on a bkateboard
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Q: Sentence: 'a cat sits on the floor next to a purse'. Replace the letter 'a' with 'b' in the sentence.

A: b cbt sits on the floor next to b purse
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Q: Sentence: 'a white, blue and red jet airliner in a airport docking area'. Replace the letter 'r' with 'p' in the sentence.

A:
a white, blue and ped jet aiplinep in a aippopt docking apea
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