Question: city in the middle of the united states
[{'answer': 'Lebanon , Kansas', 'provenance': [{'wikipedia_id': '5385152', 'title': 'Geographic center of the contiguous United States', 'start_paragraph_id': 17, 'start_character': 279, 'end_paragraph_id': 17, 'end_character': 295, 'bleu_score': 1.0, 'section': 'Section::::Method of measurement.\n'}]}]