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

Ex Input:
Sentence: 'a bus parked on the side of the road'. Replace the letter 'o' with 'd' in the sentence.

Ex Output:
a bus parked dn the side df the rdad

Ex Input:
Sentence: 'a teddy bear dressed in denim is laying on a floor'. Replace the letter 'i' with 'd' in the sentence.

Ex Output:
a teddy bear dressed dn dendm ds laydng on a floor

Ex Input:
Sentence: 'herd of zebras on the savannah near moving water'. Replace the letter 'n' with 'm' in the sentence.

Ex Output:
herd of zebras om the savammah mear movimg water