Question: who played arnold on the andy griffin show
[{'answer': 'Ronald L. Dapo', 'provenance': [{'wikipedia_id': '21203224', 'title': 'Ronnie Dapo', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '21203224', 'title': 'Ronnie Dapo', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 264, 'bleu_score': 0.9569637990759251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12149491651832616531}, 'section': 'Section::::Abstract.'}]}]