Question: who won season 15 of dancing with the stars
[{'answer': 'Melissa Rycroft', 'provenance': [{'wikipedia_id': '36452845', 'title': 'Dancing with the Stars (American season 15)', 'start_paragraph_id': 2, 'start_character': 483, 'end_paragraph_id': 2, 'end_character': 498, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Tony Dovolani', 'provenance': [{'wikipedia_id': '36452845', 'title': 'Dancing with the Stars (American season 15)', 'start_paragraph_id': 3, 'start_character': 187, 'end_paragraph_id': 3, 'end_character': 200, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]