TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'an older man wearing a suit and tie'. Replace the letter 'i' with 't' in the sentence.

SOLUTION: an older man weartng a sutt and tte

PROBLEM: Sentence: 'group playing frisbee with runners in grassy field'. Replace the letter 'l' with 'q' in the sentence.

SOLUTION: group pqaying frisbee with runners in grassy fieqd

PROBLEM: Sentence: 'a gray elephant standing next to green bushes'. Replace the letter 'e' with 'o' in the sentence.

SOLUTION:
a gray olophant standing noxt to groon bushos