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

Ex Input:
Sentence: 'a rare picture of an individual within this image'. Replace the letter 'd' with 'z' in the sentence.

Ex Output:
a rare picture of an inzivizual within this image


Ex Input:
Sentence: 'a couple of people that are petting a horse'. Replace the letter 'e' with 'p' in the sentence.

Ex Output:
a couplp of ppoplp that arp pptting a horsp


Ex Input:
Sentence: 'the old style truck is parked on the street'. Replace the letter 'e' with 'j' in the sentence.

Ex Output:

thj old stylj truck is parkjd on thj strjjt