Question: who sang na na na na hey hey hey goodbye
[{'answer': 'Paul Leka', 'provenance': [{'wikipedia_id': '3704856', 'title': 'Na Na Hey Hey Kiss Him Goodbye', 'start_paragraph_id': 1, 'start_character': 67, 'end_paragraph_id': 1, 'end_character': 76, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Gary DeCarlo', 'provenance': [{'wikipedia_id': '3704856', 'title': 'Na Na Hey Hey Kiss Him Goodbye', 'start_paragraph_id': 1, 'start_character': 78, 'end_paragraph_id': 1, 'end_character': 90, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Dale Frashuer', 'provenance': [{'wikipedia_id': '3704856', 'title': 'Na Na Hey Hey Kiss Him Goodbye', 'start_paragraph_id': 1, 'start_character': 95, 'end_paragraph_id': 1, 'end_character': 108, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3704856', 'title': 'Na Na Hey Hey Kiss Him Goodbye', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 769, 'bleu_score': 0.535322558788334, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2153582737639139608}, 'section': 'Section::::Abstract.'}]}]