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 male holding a baseball bat standing on a big white star'. Replace the letter 'a' with 'i' in the sentence.
[A]: i mile holding i bisebill bit stinding on i big white stir

[Q]: Sentence: 'a yellow double decker bus on a city street'. Replace the letter 'b' with 'n' in the sentence.
[A]:
a yellow dounle decker nus on a city street