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

Ex Input:
Sentence: 'the color theme in this kitchen is red and black'. Replace the letter 't' with 'v' in the sentence.

Ex Output:
vhe color vheme in vhis kivchen is red and black


Ex Input:
Sentence: 'a gray elephant standing next to green bushes'. Replace the letter 'e' with 'o' in the sentence.

Ex Output:
a gray olophant standing noxt to groon bushos


Ex Input:
Sentence: 'a loaded pickup and travel vehicle on the highway'. Replace the letter 'i' with 'm' in the sentence.

Ex Output:

a loaded pmckup and travel vehmcle on the hmghway