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: 'a group of people riding skis on a snowy surface'. Replace the letter 'p' with 'i' in the sentence.

SOLUTION: a groui of ieoile riding skis on a snowy surface

PROBLEM: Sentence: 'a group of two people play with wii controllers'. Replace the letter 'a' with 'z' in the sentence.

SOLUTION:
z group of two people plzy with wii controllers