TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'two tennis players shaking hands over the net'. Replace the letter 'n' with 'f' in the sentence.

SOLUTION: two teffis players shakifg hafds over the fet

PROBLEM: Sentence: 'a woman sitting on a bench under a gazebo'. Replace the letter 's' with 'u' in the sentence.

SOLUTION: a woman uitting on a bench under a gazebo

PROBLEM: Sentence: 'a man holding a plate covering his face'. Replace the letter 'c' with 'q' in the sentence.

SOLUTION:
a man holding a plate qovering his faqe