Question: when did it become law to wear seat belts
[{'answer': '1984', 'provenance': [{'wikipedia_id': '925848', 'title': 'Seat belt legislation', 'start_paragraph_id': 12, 'start_character': 81, 'end_paragraph_id': 12, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::National comparisons.:United States.\n'}]}, {'provenance': [{'wikipedia_id': '925848', 'title': 'Seat belt legislation', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 972, 'bleu_score': 0.9149036073284681, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6308917741209090480}, 'section': 'Section::::National comparisons.:United States.\n'}]}]