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

Ex Input:
Sentence: 'a man sitting in a chair with a laptop in his lap'. Replace the letter 'p' with 'v' in the sentence.

Ex Output:
a man sitting in a chair with a lavtov in his lav

Ex Input:
Sentence: 'kites flying over a woman wearing a hat'. Replace the letter 'i' with 'j' in the sentence.

Ex Output:
kjtes flyjng over a woman wearjng a hat

Ex Input:
Sentence: 'she is waterskiing in the water near some hills'. Replace the letter 's' with 'r' in the sentence.

Ex Output:
rhe ir waterrkiing in the water near rome hillr