Question: what is the name of the snowman in the disney movie frozen
[{'answer': 'Olaf', 'provenance': [{'wikipedia_id': '42006085', 'title': 'Olaf (Frozen)', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 4, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]