Question: who cracked the enigma code in world war 2
[{'answer': 'Turing', 'provenance': [{'wikipedia_id': '1208', 'title': 'Alan Turing', 'start_paragraph_id': 0, 'start_character': 5, 'end_paragraph_id': 0, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1208', 'title': 'Alan Turing', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7963805335154000899}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '872175', 'title': 'Cryptanalysis of the Enigma', 'section': 'Section::::Abstract.', 'start_paragraph_id': 4, 'end_paragraph_id': 4, 'meta': {'evidence_span': ['Turing', 'Alan Turing, a Cambridge University mathematician and logician, provided much of the original thinking that led to the design of the cryptanalytical bombe machines that were instrumental in eventually breaking the naval Enigma']}}]}, {'provenance': [{'wikipedia_id': '54756168', 'title': 'Alan Turing: The Enigma', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Turing', 'Alan Turing: The Enigma (1983) is a biography of the British mathematician, codebreaker, and early computer scientist, Alan Turing (19121954) by Andrew Hodges. The book covers Alan Turing\'s life and work. The American 2014 film "The Imitation Game" is loosely based on the book, with dramatization.']}}]}]