Question: what is the grand prize for winning american ninja warrior
[{'answer': '$500,000', 'provenance': [{'wikipedia_id': '23788991', 'title': 'American Ninja Warrior', 'start_paragraph_id': 41, 'start_character': 248, 'end_paragraph_id': 41, 'end_character': 256, 'bleu_score': 1.0, 'section': 'Section::::Format.:National Finals.:Prize money.\n'}]}, {'answer': '$1,000,000', 'provenance': [{'wikipedia_id': '23788991', 'title': 'American Ninja Warrior', 'start_paragraph_id': 41, 'start_character': 479, 'end_paragraph_id': 41, 'end_character': 489, 'bleu_score': 1.0, 'section': 'Section::::Format.:National Finals.:Prize money.\n'}]}]