Question: when did roseanne go off the air the first time
[{'answer': 'May 20 , 1997', 'provenance': [{'wikipedia_id': '93801', 'title': 'Roseanne', 'start_paragraph_id': 1, 'start_character': 157, 'end_paragraph_id': 1, 'end_character': 170, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]