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

Input: Consider Input: Sentence: 'a group of people on a beach flying a kite'. Replace the letter 'p' with 'i' in the sentence.

Output: a groui of ieoile on a beach flying a kite

Input: Consider Input: Sentence: 'people wait for a train on a snowy sidewalk'. Replace the letter 'n' with 'm' in the sentence.

Output: people wait for a traim om a smowy sidewalk

Input: Consider Input: Sentence: 'the red white and blue lights hang over the balcony'. Replace the letter 'n' with 'h' in the sentence.
Output: the red white ahd blue lights hahg over the balcohy