TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a group of giraffe standing on top of a dirt field'. Replace the letter 'a' with 'y' in the sentence.

SOLUTION: y group of giryffe stynding on top of y dirt field

PROBLEM: Sentence: 'the tennis player throws her racket in celebration'. Replace the letter 't' with 'l' in the sentence.

SOLUTION: lhe lennis player lhrows her rackel in celebralion

PROBLEM: Sentence: 'a woman dressing a parking meter with a knit squid covering'. Replace the letter 'w' with 'b' in the sentence.

SOLUTION:
a boman dressing a parking meter bith a knit squid covering