Ethan feels very nervous today because he is currently taking his practical driving test to get his license. The strict examiner sits next to him, watching how he drives the car along the wide avenue near the park. Ethan checks his mirrors carefully and stops the vehicle slowly when the traffic lights at the corner turn red. He looks to his right and waits until a group of pedestrians finishes crossing the road through a zebra crossing toward the concrete sidewalk. When the light turns green, he drives perfectly for exactly one block before making a careful turn to the left. He signals properly to enter a narrower street, and maintains a safe speed around the tight corners. Finally, Ethan drives over a narrow concrete bridge across the river and parks the car perfectly to pass his exam.