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

Q: Sentence: 'busy city street with pedestrians and cars with lights all around'. Replace the letter 'r' with 'k' in the sentence.

A: busy city stkeet with pedestkians and caks with lights all akound
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Q: Sentence: 'a open entrance leading to a set of closed doors'. Replace the letter 'd' with 'f' in the sentence.

A: a open entrance leafing to a set of closef foors
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Q: Sentence: 'a couple of people that have bananas on their head'. Replace the letter 'a' with 'h' in the sentence.

A:
h couple of people thht hhve bhnhnhs on their hehd
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