Question: when did boston red sox start playing sweet caroline
[{'answer': 'at least 1997', 'provenance': [{'wikipedia_id': '1250659', 'title': 'Sweet Caroline', 'start_paragraph_id': 9, 'start_character': 95, 'end_paragraph_id': 9, 'end_character': 108, 'bleu_score': 1.0, 'section': 'Section::::Use at sporting events.\n'}]}, {'provenance': [{'wikipedia_id': '1250659', 'title': 'Sweet Caroline', 'start_paragraph_id': 9, 'start_character': 4, 'end_paragraph_id': 9, 'end_character': 973, 'bleu_score': 0.7724299837956431, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13473770050837607512}, 'section': 'Section::::Use at sporting events.\n'}]}]