Question: who wins americas next top model season 15
[{'answer': 'Ann Ward', 'provenance': [{'wikipedia_id': '28430520', 'title': "America's Next Top Model (season 15)", 'start_paragraph_id': 5, 'start_character': 46, 'end_paragraph_id': 5, 'end_character': 54, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]