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

Q: Sentence: 'a building has a clock on the top of it'. Replace the letter 'l' with 'x' in the sentence.

A: a buixding has a cxock on the top of it
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Q: Sentence: 'this is a seafood platter with lobster and corn on the cob'. Replace the letter 't' with 'z' in the sentence.

A: zhis is a seafood plazzer wizh lobszer and corn on zhe cob
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Q: Sentence: 'a bird that is standing in the grass'. Replace the letter 'r' with 'm' in the sentence.

A:
a bimd that is standing in the gmass
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