Question: who sang na na na na hey hey goodbye
[{'answer': 'Steam', 'provenance': [{'wikipedia_id': '3704856', 'title': 'Na Na Hey Hey Kiss Him Goodbye', 'start_paragraph_id': 1, 'start_character': 159, 'end_paragraph_id': 1, 'end_character': 164, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]