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

Ex Input:
Sentence: 'a wooden bench near a tree and a stone wall'. Replace the letter 'l' with 'q' in the sentence.

Ex Output:
a wooden bench near a tree and a stone waqq


Ex Input:
Sentence: 'a house cat sits on an oven door, sniffing the oven racks inside'. Replace the letter 'i' with 'y' in the sentence.

Ex Output:
a house cat syts on an oven door, snyffyng the oven racks ynsyde


Ex Input:
Sentence: 'a blue commercial airplane parked at a jet way'. Replace the letter 'u' with 'o' in the sentence.

Ex Output:

a bloe commercial airplane parked at a jet way