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

Example Input: Sentence: 'three men in a park playing a sport'. Replace the letter 'p' with 'w' in the sentence.
Example Output: three men in a wark wlaying a swort

Example Input: Sentence: 'wine is being poured into a wine glass with a syringe'. Replace the letter 'e' with 'y' in the sentence.
Example Output: winy is bying pouryd into a winy glass with a syringy

Example Input: Sentence: 'a woman wearing gray leggings standing in a suitcase'. Replace the letter 'c' with 'a' in the sentence.
Example Output:
a woman wearing gray leggings standing in a suitaase