Question: who turns purple in charlie and the chocolate factory
[{'answer': 'Violet', 'provenance': [{'wikipedia_id': '30456888', 'title': 'List of Charlie and the Chocolate Factory characters', 'start_paragraph_id': 20, 'start_character': 11, 'end_paragraph_id': 20, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Augustus Gloop.\n'}]}, {'provenance': [{'wikipedia_id': '30456888', 'title': 'List of Charlie and the Chocolate Factory characters', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 1118, 'bleu_score': 0.899458930578219, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12232016663717373961}, 'section': 'Section::::Violet Beauregarde.\n'}]}]