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

Ex Input:
Sentence: 'the living room is designed with brown and beige colors'. Replace the letter 'i' with 'b' in the sentence.

Ex Output:
the lbvbng room bs desbgned wbth brown and bebge colors

Ex Input:
Sentence: 'lots of luggage is jammed into the back compartment of a van'. Replace the letter 'o' with 'h' in the sentence.

Ex Output:
lhts hf luggage is jammed inth the back chmpartment hf a van

Ex Input:
Sentence: 'two men are standing next to surfboards by the shore'. Replace the letter 't' with 'k' in the sentence.

Ex Output:
kwo men are skanding nexk ko surfboards by khe shore