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

Ex Input:
Sentence: 'a woman is playing tennis on the tennis court'. Replace the letter 'r' with 'z' in the sentence.

Ex Output:
a woman is playing tennis on the tennis couzt


Ex Input:
Sentence: 'a man rolling dough in the kitchen'. Replace the letter 'a' with 'e' in the sentence.

Ex Output:
e men rolling dough in the kitchen


Ex Input:
Sentence: 'a submarine sandwich sitting on a cutting board next to sliced tomatoes'. Replace the letter 'r' with 'b' in the sentence.

Ex Output:

a submabine sandwich sitting on a cutting boabd next to sliced tomatoes