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

Ex Input:
Sentence: 'commuter trains on tracks next to paved platform'. Replace the letter 'm' with 'w' in the sentence.

Ex Output:
cowwuter trains on tracks next to paved platforw

Ex Input:
Sentence: 'a metal tray holding various vegetables that include potatoes and onions'. Replace the letter 'h' with 'e' in the sentence.

Ex Output:
a metal tray eolding various vegetables teat include potatoes and onions

Ex Input:
Sentence: 'a guy on a motorcycle in the air'. Replace the letter 'r' with 'v' in the sentence.

Ex Output:
a guy on a motovcycle in the aiv