Question: who played mr dewey on saved by the bell
[{'answer': "Patrick Thomas O'Brien", 'provenance': [{'wikipedia_id': '24965328', 'title': "Patrick Thomas O'Brien", 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '24965328', 'title': "Patrick Thomas O'Brien", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 169, 'bleu_score': 0.9364250605898111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9629964465420612155}, 'section': 'Section::::Abstract.'}]}]