In this task, you need to replace a letter in the sentence with another given letter.

Ex Input:
Sentence: 'a couple of giraffes being feed by people at the zoo'. Replace the letter 't' with 'v' in the sentence.

Ex Output:
a couple of giraffes being feed by people av vhe zoo


Ex Input:
Sentence: 'a man laying stretched out on the back of a boat'. Replace the letter 'h' with 'g' in the sentence.

Ex Output:
a man laying stretcged out on tge back of a boat


Ex Input:
Sentence: 'a young holding  a video game remote in her hand'. Replace the letter 'a' with 'o' in the sentence.

Ex Output:

o young holding  o video gome remote in her hond