““The vehicle will not start. (the problem) 1. Why? The battery is dead. (first why) 2. Why? The accelerator is not functioning. (second why) 3. Why? The alternator belt has broken. (third why) 4. Why? The alternator belt was well beyond its useful service life and not replaced. (fourth why) 5. Why? The vehicle was not maintained according to the recommended service schedule. (fifth why, the root cause)””
