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

[Q]: Sentence: 'a couple of horses with carriages at a building'. Replace the letter 'u' with 'm' in the sentence.
[A]: a comple of horses with carriages at a bmilding

[Q]: Sentence: 'a baseball game is in progress at a baseball stadium'. Replace the letter 's' with 'r' in the sentence.
[A]: a bareball game ir in progrerr at a bareball rtadium

[Q]: Sentence: 'there are sheep grazing on a rocky field'. Replace the letter 'i' with 'u' in the sentence.
[A]:
there are sheep grazung on a rocky fueld