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

Ex Input:
Sentence: 'a kitchen with a fridge, stove, window, and dining table'. Replace the letter 'd' with 'f' in the sentence.

Ex Output:
a kitchen with a frifge, stove, winfow, anf fining table


Ex Input:
Sentence: 'a group of people play a video game in a living room'. Replace the letter 'p' with 'u' in the sentence.

Ex Output:
a grouu of ueoule ulay a video game in a living room


Ex Input:
Sentence: 'an engine on a large airplane on a runway'. Replace the letter 'a' with 'u' in the sentence.

Ex Output:

un engine on u lurge uirplune on u runwuy