Question: where is lackland air force base located in texas
[{'answer': 'Bexar County', 'provenance': [{'wikipedia_id': '405875', 'title': 'Lackland Air Force Base', 'start_paragraph_id': 1, 'start_character': 69, 'end_paragraph_id': 1, 'end_character': 81, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '405875', 'title': 'Lackland Air Force Base', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 336, 'bleu_score': 0.8391223019337241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15206702796061312321}, 'section': 'Section::::Abstract.'}]}]