TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a seafood dish served over a bowl of white rice'. Replace the letter 'e' with 'u' in the sentence.

SOLUTION: a suafood dish survud ovur a bowl of whitu ricu

PROBLEM: Sentence: 'a fancy clock is lit up on the street'. Replace the letter 'o' with 'f' in the sentence.

SOLUTION: a fancy clfck is lit up fn the street

PROBLEM: Sentence: 'a bus is parked outside of niagara falls'. Replace the letter 'd' with 'o' in the sentence.

SOLUTION:
a bus is parkeo outsioe of niagara falls