TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'a giraffe looking over a fence and another reaching over the fence'. Replace the letter 'l' with 'h' in the sentence.

SOLUTION: a giraffe hooking over a fence and another reaching over the fence

PROBLEM: Sentence: 'a fire hydrant and a rolled up fire hose'. Replace the letter 'd' with 's' in the sentence.

SOLUTION: a fire hysrant ans a rolles up fire hose

PROBLEM: Sentence: 'a restaurant, with people eating and chefs in the background'. Replace the letter 'o' with 'c' in the sentence.

SOLUTION:
a restaurant, with pecple eating and chefs in the backgrcund