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

Ex Input:
Sentence: 'nine geese flying south for the winter months'. Replace the letter 't' with 'f' in the sentence.

Ex Output:
nine geese flying soufh for fhe winfer monfhs


Ex Input:
Sentence: 'a bathroom with a tub connected to a pool with some sinks inside'. Replace the letter 'e' with 'b' in the sentence.

Ex Output:
a bathroom with a tub connbctbd to a pool with somb sinks insidb


Ex Input:
Sentence: 'the kitchen is clean and ready for us to use'. Replace the letter 'r' with 'p' in the sentence.

Ex Output:

the kitchen is clean and peady fop us to use