TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a teddy bear playing a drum and a teddy bear playing a guitar'. Replace the letter 'd' with 'm' in the sentence.

SOLUTION: a temmy bear playing a mrum anm a temmy bear playing a guitar

PROBLEM: Sentence: 'a living room with a wooden table next to a kitchen'. Replace the letter 'e' with 'c' in the sentence.

SOLUTION: a living room with a woodcn tablc ncxt to a kitchcn

PROBLEM: Sentence: 'a few people that are running around with a ball'. Replace the letter 'w' with 'c' in the sentence.

SOLUTION:
a fec people that are running around cith a ball