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

Q: Sentence: 'a herd of zebra stand together and eat grass'. Replace the letter 'n' with 'r' in the sentence.

A: a herd of zebra stard together ard eat grass
****
Q: Sentence: 'three men playing in a men's doubles tennis match'. Replace the letter 'e' with 'l' in the sentence.

A: thrll mln playing in a mln's doublls tlnnis match
****
Q: Sentence: 'a man cutting a cake sitting on a table'. Replace the letter 'm' with 'k' in the sentence.

A:
a kan cutting a cake sitting on a table
****