Question: how many miles from austin texas to el paso texas
[{'answer': '526'}, {'provenance': [{'wikipedia_id': '135823', 'title': 'El Paso, Texas', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 425, 'bleu_score': 0.718773465830524, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17217005779366412313}, 'section': 'Section::::Geography.\n'}]}]