Question: what's the highest point in the us
[{'answer': 'Mount Whitney', 'provenance': [{'wikipedia_id': '238615', 'title': 'Mount Whitney', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 13, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '238615', 'title': 'Mount Whitney', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 571, 'bleu_score': 0.716756624186593, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7938927525128441967}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '238615', 'title': 'Mount Whitney', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7938927525128441967}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '364793', 'title': 'Mount Elbert', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Mount Elbert is the highest summit of the Rocky Mountains of North America and the highest point in the U.S. state of Colorado and the entire Mississippi River drainage basin. The ultra-prominent fourteener is the highest peak in the Sawatch Range and the second-highest summit in the contiguous United States after Mount Whitney. Mount Elbert is located in San Isabel National Forest, southwest (bearing 223°) of the City of Leadville in Lake County, Colorado. The mountain was named in honor of a Colorado statesman, Samuel Hitt Elbert', 'The ultra-prominent fourteener is the highest peak in the Sawatch Range and the second-highest summit in the contiguous United States after Mount Whitney.', 'The ultra-prominent fourteener is the highest peak in the Sawatch Range and the second-highest summit in the contiguous United States after Mount Whitney.']}}]}, {'provenance': [{'wikipedia_id': '32019', 'title': 'Geography of the United States', 'section': 'Section::::Physiographic divisions.\n', 'start_paragraph_id': 16, 'end_paragraph_id': 16, 'meta': {'evidence_span': ["The Intermontane Plateaus come to an end at the Cascade Range and the Sierra Nevada. The Cascades consist of largely intermittent, volcanic mountains, many rising prominently from the surrounding landscape. The Sierra Nevada, further south, is a high, rugged, and dense mountain range. It contains the highest point in the contiguous 48 states, Mount Whitney (). It is located at the boundary between California's Inyo and Tulare counties, just west-northwest of the lowest point in North America at the Badwater Basin in Death Valley National Park at below sea level. These areas contain some spectacular scenery as well\rhighlight sentence(s) containing evidence, not only the answer", 'It contains the highest point in the contiguous 48 states, Mount Whitney', 'The Sierra Nevada, further south, is a high, rugged, and dense mountain range. It contains the highest point in the contiguous 48 states, Mount Whitney']}}]}]