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

[EX Q]: Sentence: 'a person with a cell phone standing next to a train'. Replace the letter 's' with 't' in the sentence.
[EX A]: a perton with a cell phone ttanding next to a train

[EX Q]: Sentence: 'two cats sitting on an office chair next to a desk'. Replace the letter 's' with 'j' in the sentence.
[EX A]: two catj jitting on an office chair next to a dejk

[EX Q]: Sentence: 'two photographs of a closed and open refrigerator'. Replace the letter 'n' with 'y' in the sentence.
[EX A]:
two photographs of a closed ayd opey refrigerator