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

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

Ex Output:
a fire hysrant ans a rolles up fire hose


Ex Input:
Sentence: 'a dog wearing a hat on top of it's head'. Replace the letter 'g' with 'o' in the sentence.

Ex Output:
a doo wearino a hat on top of it's head


Ex Input:
Sentence: '4 people seem to be playing the nintendo wii on a large screen'. Replace the letter 'w' with 'g' in the sentence.

Ex Output:

4 people seem to be playing the nintendo gii on a large screen