Question: who does the voice of vanellope in wreck it ralph
[{'answer': 'Sarah Silverman', 'provenance': [{'wikipedia_id': '32071439', 'title': 'Wreck-It Ralph', 'start_paragraph_id': 1, 'start_character': 501, 'end_paragraph_id': 1, 'end_character': 516, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '32071439', 'title': 'Wreck-It Ralph', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 84, 'bleu_score': 0.8385766789076251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12911717659626107793}, 'section': 'Section::::Cast.\n'}]}]