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

Input: Consider Input: Sentence: 'a young baseball player throws the ball as others watch'. Replace the letter 'a' with 'n' in the sentence.

Output: n young bnsebnll plnyer throws the bnll ns others wntch

Input: Consider Input: Sentence: 'a couple of kids with rackets on a court'. Replace the letter 'u' with 'd' in the sentence.

Output: a codple of kids with rackets on a codrt

Input: Consider Input: Sentence: 'organic fruits and vegetables on display in containers'. Replace the letter 'n' with 'y' in the sentence.
Output: orgayic fruits ayd vegetables oy display iy coytaiyers