Question: who played graham on saved by the bell
[{'answer': 'David Kreigel', 'provenance': [{'wikipedia_id': '3980554', 'title': 'List of Saved by the Bell characters', 'start_paragraph_id': 41, 'start_character': 498, 'end_paragraph_id': 41, 'end_character': 511, 'bleu_score': 1.0, 'section': 'Section::::Main characters.:Jessie Spano.\n'}]}, {'provenance': [{'wikipedia_id': '3980554', 'title': 'List of Saved by the Bell characters', 'start_paragraph_id': 41, 'start_character': 0, 'end_paragraph_id': 41, 'end_character': 610, 'bleu_score': 0.9815648442794911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7280111187449399392}, 'section': 'Section::::Main characters.:Jessie Spano.\n'}]}]