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

Ex Input:
Sentence: 'a big bowl of brown food halfway in a small oven'. Replace the letter 'v' with 'k' in the sentence.

Ex Output:
a big bowl of brown food halfway in a small oken


Ex Input:
Sentence: 'a person is riding a motorcycle as part of some kind of performance'. Replace the letter 'm' with 'a' in the sentence.

Ex Output:
a person is riding a aotorcycle as part of soae kind of perforaance


Ex Input:
Sentence: 'a living room has a television, a table, and a painting'. Replace the letter 'n' with 'm' in the sentence.

Ex Output:

a livimg room has a televisiom, a table, amd a paimtimg