TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a man is standing at the base ball triangle with bat in tow'. Replace the letter 'n' with 'c' in the sentence.

SOLUTION: a mac is stacdicg at the base ball triacgle with bat ic tow

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: 'a motorcycle parked at the side of a paved road'. Replace the letter 'e' with 's' in the sentence.

SOLUTION:
a motorcycls parksd at ths sids of a pavsd road