Question: who played opie on the andy griffith show
[{'answer': 'Howard', 'provenance': [{'wikipedia_id': '58928', 'title': 'Ron Howard', 'start_paragraph_id': 0, 'start_character': 4, 'end_paragraph_id': 0, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]