Question: what air force base is in del rio texas
[{'answer': 'Laughlin Air Force Base', 'provenance': [{'wikipedia_id': '604138', 'title': 'Laughlin Air Force Base', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '604138', 'title': 'Laughlin Air Force Base', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 173, 'bleu_score': 0.738958267787845, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17441029786344311090}, 'section': 'Section::::Abstract.'}]}]