TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
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 train moving on a track during the day'. Replace the letter 't' with 'q' in the sentence.

SOLUTION: a qrain moving on a qrack during qhe day

PROBLEM: Sentence: 'a woman sitting in a row of chairs with a laptop and a bag'. Replace the letter 'm' with 'e' in the sentence.

SOLUTION:
a woean sitting in a row of chairs with a laptop and a bag