Question: how many seasons of beavis and butthead are there
[{'answer': '8', 'provenance': [{'wikipedia_id': '3427', 'title': 'Beavis and Butt-Head', 'start_paragraph_id': 1, 'start_character': 330, 'end_paragraph_id': 1, 'end_character': 331, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]