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

Example Input: Sentence: 'two men running for a soccer ball on a field'. Replace the letter 'd' with 'a' in the sentence.
Example Output: two men running for a soccer ball on a fiela

Example Input: Sentence: 'a herd of zebra grazing in a lush green field'. Replace the letter 'h' with 'j' in the sentence.
Example Output: a jerd of zebra grazing in a lusj green field

Example Input: Sentence: 'a golden block sitting in a  room on red carpeting'. Replace the letter 'e' with 'j' in the sentence.
Example Output:
a goldjn block sitting in a  room on rjd carpjting