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

Input: Consider Input: Sentence: 'a man is standing with this luggage next to a railroad track'. Replace the letter 'g' with 'l' in the sentence.

Output: a man is standinl with this lullale next to a railroad track

Input: Consider Input: Sentence: 'a waterview with multiple boats in the water'. Replace the letter 'r' with 'w' in the sentence.

Output: a watewview with multiple boats in the watew

Input: Consider Input: Sentence: 'a guy is standing playing video games while a woman is bent over'. Replace the letter 'y' with 'k' in the sentence.
Output: a guk is standing plaking video games while a woman is bent over