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

[Q]: Sentence: 'two police officers riding horses down the street'. Replace the letter 'o' with 'd' in the sentence.
[A]: twd pdlice dfficers riding hdrses ddwn the street


[Q]: Sentence: 'a mobile phone and a set of keys on a key chain'. Replace the letter 's' with 'j' in the sentence.
[A]: a mobile phone and a jet of keyj on a key chain


[Q]: Sentence: 'a tractor putting stuff in the back of a dump truck'. Replace the letter 'r' with 'c' in the sentence.
[A]:
a tcactoc putting stuff in the back of a dump tcuck