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

Ex Input:
Sentence: 'a bunch of giraffe stand around on a dirt covered area'. Replace the letter 'e' with 'p' in the sentence.

Ex Output:
a bunch of giraffp stand around on a dirt covprpd arpa


Ex Input:
Sentence: 'the child is throwing the frisbee through the hoop'. Replace the letter 't' with 'm' in the sentence.

Ex Output:
mhe child is mhrowing mhe frisbee mhrough mhe hoop


Ex Input:
Sentence: 'a man sitting on a wooden bench holding a cell phone'. Replace the letter 'i' with 'e' in the sentence.

Ex Output:

a man setteng on a wooden bench holdeng a cell phone