Question: when did the hurricane harvey start in texas
[{'answer': 'August 25', 'provenance': [{'wikipedia_id': '55016388', 'title': 'Hurricane Harvey', 'start_paragraph_id': 11, 'start_character': 612, 'end_paragraph_id': 11, 'end_character': 621, 'bleu_score': 1.0, 'section': 'Section::::Preparations.:Caribbean and Latin America.\n'}]}]