Question: when was high fructose corn syrup added to soda
[{'answer': '1976', 'provenance': [{'wikipedia_id': '2366752', 'title': 'High-fructose corn syrup', 'start_paragraph_id': 19, 'start_character': 535, 'end_paragraph_id': 19, 'end_character': 539, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '2366752', 'title': 'High-fructose corn syrup', 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 1033, 'bleu_score': 0.9668954950326201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 235438927841779340}, 'section': 'Section::::History.\n'}]}]