One day Jonso an aeroplane cleaner was cleaning the cockpit when he saw a book there: “How to fly an aeroplane for beginners. Volume One”.
He opened the first page which said, “To start the engine, press the red button.”.
He did so and the airplane engine started.
He was happy and opened the next page. “To set airplane moving press the blue button.”
He opened the first page which said, “To start the engine, press the red button.”.
He did so and the airplane engine started.
He was happy and opened the next page. “To set airplane moving press the blue button.”