Question: what is the highest mountain in the lower 48 united states
[{'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': 0.6810422503638951, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12063802073854413189}, 'section': 'Section::::Abstract.'}]}]