Question: when did mutiny on the bounty take place
[{'answer': '28 April 1789', 'provenance': [{'wikipedia_id': '69406', 'title': 'Mutiny on the Bounty', 'start_paragraph_id': 1, 'start_character': 69, 'end_paragraph_id': 1, 'end_character': 82, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '69406', 'title': 'Mutiny on the Bounty', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 486, 'bleu_score': 0.752488358313894, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6396115120970852208}, 'section': 'Section::::Abstract.'}]}]