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

Example Input: Sentence: 'children trying little hamburgers from a tray at school'. Replace the letter 'y' with 'l' in the sentence.
Example Output: children trling little hamburgers from a tral at school

Example Input: Sentence: 'a kitchen with a fridge, stove, window, and dining table'. Replace the letter 'd' with 'f' in the sentence.
Example Output: a kitchen with a frifge, stove, winfow, anf fining table

Example Input: Sentence: 'four people sitting in a small area preparing to play a game of wii'. Replace the letter 'l' with 'e' in the sentence.
Example Output:
four peopee sitting in a smaee area preparing to peay a game of wii