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: 'a hand holding part of a sponge with scissors nearby'. Replace the letter 'o' with 'e' in the sentence.

SOLUTION: a hand helding part ef a spenge with scissers nearby

PROBLEM: Sentence: 'a close up of a bear walking out of a body of water'. Replace the letter 'u' with 'k' in the sentence.

SOLUTION:
a close kp of a bear walking okt of a body of water