Question: when did the french revolution start and why
[{'answer': '5 May 1789', 'provenance': [{'wikipedia_id': '11188', 'title': 'French Revolution', 'start_paragraph_id': 25, 'start_character': 86, 'end_paragraph_id': 25, 'end_character': 96, 'bleu_score': 1.0, 'section': 'Section::::Ancien Régime.:Estates-General of 1789.\n'}]}]