TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a woman sitting on a bench under a gazebo'. Replace the letter 's' with 'u' in the sentence.

SOLUTION: a woman uitting on a bench under a gazebo

PROBLEM: Sentence: 'an old photo of group of people nicely dressed around the end of a long table'. Replace the letter 'e' with 'i' in the sentence.

SOLUTION: an old photo of group of piopli nicily drissid around thi ind of a long tabli

PROBLEM: Sentence: 'a person holding a kite flying in the air'. Replace the letter 'y' with 't' in the sentence.

SOLUTION:
a person holding a kite flting in the air