Question: who became the tycoon of the oil industry
[{'answer': 'John Davison Rockefeller Sr.', 'provenance': [{'wikipedia_id': '186300', 'title': 'John D. Rockefeller', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '186300', 'title': 'John D. Rockefeller', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 213, 'bleu_score': 0.789595910631345, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8362867181707690785}, 'section': 'Section::::Abstract.'}]}]