TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a few zebras that are next to each other'. Replace the letter 'o' with 'u' in the sentence.

SOLUTION: a few zebras that are next tu each uther

PROBLEM: Sentence: 'closeup of two teddy bears in red scarves and a brown teddy bear'. Replace the letter 'i' with 'y' in the sentence.

SOLUTION: closeup of two teddy bears yn red scarves and a brown teddy bear

PROBLEM: Sentence: 'a laptop displays a linux desktop on its screen'. Replace the letter 'p' with 'w' in the sentence.

SOLUTION:
a lawtow diswlays a linux desktow on its screen