Question: what year did they put black boxes in cars
[{'answer': '1993', 'provenance': [{'wikipedia_id': '5361228', 'title': 'Event data recorder', 'start_paragraph_id': 14, 'start_character': 85, 'end_paragraph_id': 14, 'end_character': 89, 'bleu_score': 1.0, 'section': 'Section::::Usage of event data recorders.\n'}]}, {'provenance': [{'wikipedia_id': '5361228', 'title': 'Event data recorder', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 208, 'bleu_score': 0.5211020239987461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6917445655613527862}, 'section': 'Section::::Usage of event data recorders.\n'}]}]