Question: when did the dow jones industrial average start
[{'answer': 'May 26 , 1896', 'provenance': [{'wikipedia_id': '47361', 'title': 'Dow Jones Industrial Average', 'start_paragraph_id': 23, 'start_character': 64, 'end_paragraph_id': 23, 'end_character': 77, 'bleu_score': 1.0, 'section': 'Section::::History.:Initial components.\n'}]}]