Question: who did the voice of hans in frozen
[{'answer': 'Santino Fontana', 'provenance': [{'wikipedia_id': '34164547', 'title': 'Frozen (2013 film)', 'start_paragraph_id': 2, 'start_character': 250, 'end_paragraph_id': 2, 'end_character': 265, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]