Question: The Mountains-to-Sea Trail (MST) is a long-distance trail, for hiking and backpacking, that runs across North Carolina from the Great Smoky Mountains to the Outer Banks, the trail's western endpoint is at Clingman's Dome, where it connects to the Appalachian National Scenic Trail, generally known as the Appalachian Trail or simply the A.T., is a marked hiking trail in which location?
{'answer': 'Eastern United States', 'supporting_facts': [['Mountains-to-Sea Trail', 1], ['Appalachian Trail', 0]]}