TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a man that is throwing a frizbee in the woods'. Replace the letter 'g' with 'u' in the sentence.

SOLUTION: a man that is throwinu a frizbee in the woods

PROBLEM: Sentence: 'a yellow street sign sitting on the side of a road'. Replace the letter 'a' with 'd' in the sentence.

SOLUTION: d yellow street sign sitting on the side of d rodd

PROBLEM: Sentence: 'a weird yellow sign sitting on the side of a dirt road'. Replace the letter 'n' with 'v' in the sentence.

SOLUTION:
a weird yellow sigv sittivg ov the side of a dirt road