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

Ex Input:
Sentence: 'small kit bathroom sink with purple walls and lights on it'. Replace the letter 'o' with 'r' in the sentence.

Ex Output:
small kit bathrrrm sink with purple walls and lights rn it


Ex Input:
Sentence: 'a yellow fire hydrant sitting on the sidewalk'. Replace the letter 'o' with 'd' in the sentence.

Ex Output:
a yelldw fire hydrant sitting dn the sidewalk


Ex Input:
Sentence: 'a black oven and black microwave in a cluttered kitchen'. Replace the letter 'i' with 'w' in the sentence.

Ex Output:

a black oven and black mwcrowave wn a cluttered kwtchen