TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a tennis player wearing black shorts and blue shirt swinging at the ball'. Replace the letter 'w' with 'o' in the sentence.

SOLUTION: a tennis player oearing black shorts and blue shirt soinging at the ball

PROBLEM: Sentence: 'the man is skiing fast in the snow'. Replace the letter 'o' with 'x' in the sentence.

SOLUTION: the man is skiing fast in the snxw

PROBLEM: Sentence: 'two giraffes eating hay out of basket hanging in tree'. Replace the letter 'b' with 'z' in the sentence.

SOLUTION:
two giraffes eating hay out of zasket hanging in tree