Question: who is the pilot that dropped the atomic bomb
[{'answer': 'Paul Warfield Tibbets Jr.', 'provenance': [{'wikipedia_id': '199511', 'title': 'Paul Tibbets', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '199511', 'title': 'Paul Tibbets', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 339, 'bleu_score': 0.9029678579330701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16491976956186884853}, 'section': 'Section::::Abstract.'}]}]