TASK DEFINITION: In this task, you need to replace a letter in the sentence with another given letter.
PROBLEM: Sentence: 'the color theme in this kitchen is red and black'. Replace the letter 't' with 'v' in the sentence.

SOLUTION: vhe color vheme in vhis kivchen is red and black

PROBLEM: Sentence: 'you are never to old to play with the nintendo wii'. Replace the letter 'e' with 'v' in the sentence.

SOLUTION: you arv nvvvr to old to play with thv nintvndo wii

PROBLEM: Sentence: 'a couple of giraffe standing next to each other near  a fence'. Replace the letter 'f' with 'j' in the sentence.

SOLUTION:
a couple oj girajje standing next to each other near  a jence