Question: who won season 16 on dancing with the stars
[{'answer': 'Kellie Pickler', 'provenance': [{'wikipedia_id': '38085598', 'title': 'Dancing with the Stars (American season 16)', 'start_paragraph_id': 2, 'start_character': 194, 'end_paragraph_id': 2, 'end_character': 208, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Derek Hough', 'provenance': [{'wikipedia_id': '38085598', 'title': 'Dancing with the Stars (American season 16)', 'start_paragraph_id': 3, 'start_character': 24, 'end_paragraph_id': 3, 'end_character': 35, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '38085598', 'title': 'Dancing with the Stars (American season 16)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 3, 'end_paragraph_id': 3, 'meta': {'evidence_span': ['Pickler and her partner Derek Hough won the competition, marking his fourth of six wins and increasing his lead on the show as the professional dancer who has won the most mirror ball trophies.', 'Pickler and her partner Derek Hough won the competition, marking his fourth of six wins and increasing his lead on the show as the professional dancer who has won the most mirror ball trophies.']}}]}]