In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a person on a snow board flying through the air'. Replace the letter 'f' with 'n' in the sentence.

Answer: a person on a snow board nlying through the air


Question: Sentence: 'an umbrella sitting on top of a hill next to a body of water'. Replace the letter 't' with 'b' in the sentence.

Answer: an umbrella sibbing on bop of a hill nexb bo a body of waber


Question: Sentence: 'a baby pokes his head out of a suitcase'. Replace the letter 'u' with 's' in the sentence.

Answer:
a baby pokes his head ost of a ssitcase