Question: the largest city in kansas on the arkansas river
[{'answer': 'Wichita', 'provenance': [{'wikipedia_id': '114932', 'title': 'Wichita, Kansas', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]