Question: who plays horton in horton hears a who
[{'answer': 'Jim Carrey', 'provenance': [{'wikipedia_id': '6002183', 'title': 'Horton Hears a Who! (film)', 'start_paragraph_id': 1, 'start_character': 405, 'end_paragraph_id': 1, 'end_character': 415, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6002183', 'title': 'Horton Hears a Who! (film)', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 220, 'bleu_score': 0.8000042440881181, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14061707727100964726}, 'section': 'Section::::Voice cast.\n'}]}]