Question: when did the rolling stones play hyde park
[{'answer': '5 July 1969', 'provenance': [{'wikipedia_id': '36449968', 'title': 'The Stones in the Park', 'start_paragraph_id': 1, 'start_character': 72, 'end_paragraph_id': 1, 'end_character': 83, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '36449968', 'title': 'The Stones in the Park', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 296, 'bleu_score': 0.8821415355185661, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3457288153259989450}, 'section': 'Section::::Abstract.'}]}]