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

Example Input: Sentence: 'a woman sitting on a wooden chair holding a cat'. Replace the letter 'n' with 'q' in the sentence.
Example Output: a womaq sittiqg oq a woodeq chair holdiqg a cat

Example Input: Sentence: 'a person on a snowboard does an air trick'. Replace the letter 'n' with 'o' in the sentence.
Example Output: a persoo oo a soowboard does ao air trick

Example Input: Sentence: 'a batter running in  a baseball game while a crowd watches'. Replace the letter 'e' with 'z' in the sentence.
Example Output:
a battzr running in  a baszball gamz whilz a crowd watchzs