Task: Program Execution
Input (English): Sentence: 'a toaster oven on a counter is open with a tray of muffins in it, with two muffins on plates to the side'. Replace the letter 'o' with 'h' in the sentence.
Output (English): a thaster hven hn a chunter is hpen with a tray hf muffins in it, with twh muffins hn plates th the side