TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a polar bear relaxing in a man-made pool'. Replace the letter 'r' with 'x' in the sentence.

SOLUTION: a polax beax xelaxing in a man-made pool

PROBLEM: Sentence: 'he is making a meal on the boat and the man behind is getting out chopsticks and the other one is sitting'. Replace the letter 'e' with 'j' in the sentence.

SOLUTION: hj is making a mjal on thj boat and thj man bjhind is gjtting out chopsticks and thj othjr onj is sitting

PROBLEM: Sentence: 'a man adjusting his tie while wearing a jacket'. Replace the letter 'j' with 'h' in the sentence.

SOLUTION:
a man adhusting his tie while wearing a hacket