Question: when did sinclair oil go out of business
[{'answer': '1969', 'provenance': [{'wikipedia_id': '489423', 'title': 'Sinclair Oil Corporation', 'start_paragraph_id': 5, 'start_character': 16, 'end_paragraph_id': 5, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '489423', 'title': 'Sinclair Oil Corporation', 'start_paragraph_id': 17, 'start_character': 0, 'end_paragraph_id': 17, 'end_character': 750, 'bleu_score': 0.983401048538667, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6527285992057301496}, 'section': 'Section::::History.:ARCO era.\n'}]}]