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

Ex Input:
Sentence: 'two girls holding blue umbrellas wearing shirts and plastic'. Replace the letter 'd' with 'y' in the sentence.

Ex Output:
two girls holying blue umbrellas wearing shirts any plastic

Ex Input:
Sentence: 'a kitchen with open style cabinets and a counter full of liquor bottles'. Replace the letter 't' with 'p' in the sentence.

Ex Output:
a kipchen wiph open spyle cabineps and a counper full of liquor bopples

Ex Input:
Sentence: 'a female skier is pictured with her skis and poles'. Replace the letter 'a' with 'y' in the sentence.

Ex Output:
y femyle skier is pictured with her skis ynd poles