Question: when did yoplait yogurt come on the market
[{'answer': '1964', 'provenance': [{'wikipedia_id': '1353595', 'title': 'Yoplait', 'start_paragraph_id': 3, 'start_character': 3, 'end_paragraph_id': 3, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '1353595', 'title': 'Yoplait', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 423, 'bleu_score': 0.9318557434050331, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5315863308921542419}, 'section': 'Section::::History.\n'}]}]