Question: who is the most successful football manager in the world
[{'answer': 'Scot Alex Ferguson', 'provenance': [{'wikipedia_id': '16309270', 'title': 'List of UEFA club competition winning managers', 'start_paragraph_id': 2, 'start_character': 54, 'end_paragraph_id': 2, 'end_character': 72, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Carlo Ancelotti', 'provenance': [{'wikipedia_id': '16309270', 'title': 'List of UEFA club competition winning managers', 'start_paragraph_id': 2, 'start_character': 33, 'end_paragraph_id': 2, 'end_character': 48, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Giovanni Trapattoni', 'provenance': [{'wikipedia_id': '16309270', 'title': 'List of UEFA club competition winning managers', 'start_paragraph_id': 2, 'start_character': 9, 'end_paragraph_id': 2, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '16309270', 'title': 'List of UEFA club competition winning managers', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 316, 'bleu_score': 0.8505405945991491, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7290116047566102736}, 'section': 'Section::::Abstract.'}]}]