TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a man holds his hands out in pursuit of a disk'. Replace the letter 'n' with 'o' in the sentence.

SOLUTION: a mao holds his haods out io pursuit of a disk

PROBLEM: Sentence: 'two tennis players shaking hands across the net'. Replace the letter 't' with 's' in the sentence.

SOLUTION: swo sennis players shaking hands across she nes

PROBLEM: Sentence: 'people are watching a tennis game being played'. Replace the letter 's' with 'm' in the sentence.

SOLUTION:
people are watching a tennim game being played