Question: american girl grace stirs up success cast grace's brother
[{'answer': 'Tom Doherty', 'provenance': [{'wikipedia_id': '46936984', 'title': 'An American Girl: Grace Stirs Up Success', 'start_paragraph_id': 24, 'start_character': 12, 'end_paragraph_id': 24, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}]