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

[EX Q]: Sentence: 'a crooked street sign on a damaged sidewalk'. Replace the letter 'm' with 'u' in the sentence.
[EX A]: a crooked street sign on a dauaged sidewalk

[EX Q]: Sentence: 'giraffe standing on a pile of rocks reaching up to a branch with its mouth'. Replace the letter 'g' with 'n' in the sentence.
[EX A]: niraffe standinn on a pile of rocks reachinn up to a branch with its mouth

[EX Q]: Sentence: 'a bed with rumpled covers is bathed in morning sunlight'. Replace the letter 'u' with 'g' in the sentence.
[EX A]:
a bed with rgmpled covers is bathed in morning sgnlight