Question: when did mcdonald's start giving out toys
[{'answer': '1979', 'provenance': [{'wikipedia_id': '484398', 'title': 'Happy Meal', 'start_paragraph_id': 1, 'start_character': 109, 'end_paragraph_id': 1, 'end_character': 113, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '484398', 'title': 'Happy Meal', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 1307, 'bleu_score': 0.9669907463589961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2449200124862142011}, 'section': 'Section::::History.\n'}]}]