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

[Q]: Sentence: 'a blue and white train is coming down some tracks'. Replace the letter 'b' with 'u' in the sentence.
[A]: a ulue and white train is coming down some tracks


[Q]: Sentence: 'a person lays on the inside of a suitcase'. Replace the letter 'i' with 'l' in the sentence.
[A]: a person lays on the lnslde of a sultcase


[Q]: Sentence: 'a white plate topped with a small pizza on top of a table'. Replace the letter 'm' with 'r' in the sentence.
[A]:
a white plate topped with a srall pizza on top of a table