Question: who did dr faust sell his soul too
[{'answer': 'the Devil', 'provenance': [{'wikipedia_id': '84672', 'title': 'Faust', 'start_paragraph_id': 2, 'start_character': 107, 'end_paragraph_id': 2, 'end_character': 116, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '84672', 'title': 'Faust', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 349, 'bleu_score': 0.6378017621619431, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 768500178397386054}, 'section': 'Section::::Abstract.'}]}]