Question: when did they start putting air bags in cars
[{'answer': 'during the 1970s', 'provenance': [{'wikipedia_id': '60023', 'title': 'Airbag', 'start_paragraph_id': 5, 'start_character': 70, 'end_paragraph_id': 5, 'end_character': 86, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '60023', 'title': 'Airbag', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 376, 'bleu_score': 0.9669306597086381, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4889606236573386172}, 'section': 'Section::::Abstract.'}]}]