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

Ex Input:
Sentence: 'a person is looking out of a large window'. Replace the letter 'o' with 'p' in the sentence.

Ex Output:
a perspn is lppking put pf a large windpw


Ex Input:
Sentence: 'a zebra is eating hay in a fenced enclosure'. Replace the letter 'e' with 'i' in the sentence.

Ex Output:
a zibra is iating hay in a fincid inclosuri


Ex Input:
Sentence: 'a man in a fancy hat in a crowded dark room'. Replace the letter 'm' with 'p' in the sentence.

Ex Output:

a pan in a fancy hat in a crowded dark roop