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

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: 'the entree on the long plate is in the middle of the wooden table'. Replace the letter 'h' with 'z' in the sentence.
Example Output: tze entree on tze long plate is in tze middle of tze wooden table

Example Input: Sentence: 'a skier has fallen down in the snow'. Replace the letter 'n' with 'k' in the sentence.
Example Output:
a skier has fallek dowk ik the skow