Question: who was zack on saved by the bell
[{'answer': 'Mark - Paul Harry Gosselaar', 'provenance': [{'wikipedia_id': '527018', 'title': 'Mark-Paul Gosselaar', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '527018', 'title': 'Mark-Paul Gosselaar', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 222, 'bleu_score': 0.848127488414093, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2207632446992925972}, 'section': 'Section::::Abstract.'}]}]