Question: The Black Mountains, a mid-Miocene formation, in which U.S. State, are a series of rugged, arid rocky volcanic mountains ranging in elevations to 3310 ft, the range lies on the north shore of Lake Mead, the largest reservoir in the United States in terms of water capacity?
{'answer': 'Nevada', 'supporting_facts': [['Black Mountains (Nevada)', 0], ['Lake Mead', 0]]}