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

Ex Input:
Sentence: 'one wall in the room is flanked by a lovely piece of furniture which displays several object d'art'. Replace the letter 'n' with 'z' in the sentence.

Ex Output:
oze wall iz the room is flazked by a lovely piece of furziture which displays several object d'art


Ex Input:
Sentence: 'a group of sheep is standing in a grassy field'. Replace the letter 'g' with 'p' in the sentence.

Ex Output:
a proup of sheep is standinp in a prassy field


Ex Input:
Sentence: 'view from across the street and view from rear view mirror'. Replace the letter 'v' with 't' in the sentence.

Ex Output:

tiew from across the street and tiew from rear tiew mirror