Question: who voices the once ler in the lorax
[{'answer': 'Ed Helms', 'provenance': [{'wikipedia_id': '28063569', 'title': 'The Lorax (film)', 'start_paragraph_id': 2, 'start_character': 254, 'end_paragraph_id': 2, 'end_character': 262, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '28063569', 'title': 'The Lorax (film)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 517, 'bleu_score': 0.5453213997402621, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4933933397788056055}, 'section': 'Section::::Abstract.'}]}]