Question: when did gulf oil go out of business
[{'answer': '1984', 'provenance': [{'wikipedia_id': '59218', 'title': 'Gulf Oil', 'start_paragraph_id': 33, 'start_character': 951, 'end_paragraph_id': 33, 'end_character': 955, 'bleu_score': 1.0, 'section': 'Section::::Demise.\n'}]}]