Question: who was the first person to win americas got talent
[{'answer': 'Bianca Ryan', 'provenance': [{'wikipedia_id': '4829129', 'title': "America's Got Talent", 'start_paragraph_id': 28, 'start_character': 320, 'end_paragraph_id': 28, 'end_character': 331, 'bleu_score': 1.0, 'section': 'Section::::Season synopses.:Season 1 (2006).\n'}]}]