TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a giraffe leaning over a fence from inside it's pasture'. Replace the letter 'n' with 'l' in the sentence.

SOLUTION: a giraffe lealilg over a felce from ilside it's pasture

PROBLEM: Sentence: 'a dog standing near a potted plant outside'. Replace the letter 'a' with 'j' in the sentence.

SOLUTION: j dog stjnding nejr j potted pljnt outside

PROBLEM: Sentence: 'the woman lies on a surfboard next to another swimmer'. Replace the letter 'e' with 'o' in the sentence.

SOLUTION:
tho woman lios on a surfboard noxt to anothor swimmor