TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a white nerd with a tie around his sweater'. Replace the letter 'i' with 'q' in the sentence.

SOLUTION: a whqte nerd wqth a tqe around hqs sweater

PROBLEM: Sentence: 'a man that is jumping a skateboard over something'. Replace the letter 'g' with 'j' in the sentence.

SOLUTION: a man that is jumpinj a skateboard over somethinj

PROBLEM: Sentence: 'a bathroom sink unit is far too small for the wall it's mounted on'. Replace the letter 'e' with 'v' in the sentence.

SOLUTION:
a bathroom sink unit is far too small for thv wall it's mountvd on