In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'an older red airplane is going straight up'. Replace the letter 'h' with 'z' in the sentence.

Answer: an older red airplane is going straigzt up


Question: Sentence: 'this is a seafood platter with lobster and corn on the cob'. Replace the letter 't' with 'z' in the sentence.

Answer: zhis is a seafood plazzer wizh lobszer and corn on zhe cob


Question: Sentence: 'people walking down an urban sidewalk on a rainy night'. Replace the letter 'l' with 'b' in the sentence.

Answer:
peopbe wabking down an urban sidewabk on a rainy night