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

[Q]: Sentence: 'a fancy clock is lit up on the street'. Replace the letter 'o' with 'f' in the sentence.
[A]: a fancy clfck is lit up fn the street


[Q]: Sentence: 'a fire fighter climbs onto the roof of a market with a ladder'. Replace the letter 'r' with 'k' in the sentence.
[A]: a fike fightek climbs onto the koof of a makket with a laddek


[Q]: Sentence: 'a black table surrounded by some big blue couches'. Replace the letter 'c' with 'q' in the sentence.
[A]:
a blaqk table surrounded by some big blue qouqhes