TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a bunch of animals that are runing in a field'. Replace the letter 'm' with 'j' in the sentence.

SOLUTION: a bunch of anijals that are runing in a field

PROBLEM: Sentence: 'a group of men sitting at a desk with lap top computers'. Replace the letter 'p' with 'z' in the sentence.

SOLUTION: a grouz of men sitting at a desk with laz toz comzuters

PROBLEM: Sentence: 'a man flying through the air while riding a skateboard'. Replace the letter 'n' with 'p' in the sentence.

SOLUTION:
a map flyipg through the air while ridipg a skateboard