Question: who does the voice of kristoff in frozen
[{'answer': 'Jonathan Drew Groff', 'provenance': [{'wikipedia_id': '10798245', 'title': 'Jonathan Groff', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '10798245', 'title': 'Jonathan Groff', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 73, 'bleu_score': 0.850733133512352, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8199295821163081672}, 'section': 'Section::::Abstract.'}]}]