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

Ex Input:
Sentence: 'a kitchen scene with a lot of items on the counters'. Replace the letter 't' with 'm' in the sentence.

Ex Output:
a kimchen scene wimh a lom of imems on mhe counmers


Ex Input:
Sentence: 'a group of women are sitting at a table eating lunch'. Replace the letter 'e' with 'k' in the sentence.

Ex Output:
a group of womkn ark sitting at a tablk kating lunch


Ex Input:
Sentence: 'an airplane flying through a cloudy blue sky'. Replace the letter 'l' with 'x' in the sentence.

Ex Output:

an airpxane fxying through a cxoudy bxue sky