Question: who sings ain't it fun by guns n roses
[{'answer': 'Hanoi Rocks frontman Michael Monroe', 'provenance': [{'wikipedia_id': '23616852', 'title': '"The Spaghetti Incident?"', 'start_paragraph_id': 4, 'start_character': 278, 'end_paragraph_id': 4, 'end_character': 313, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'provenance': [{'wikipedia_id': '23616852', 'title': '"The Spaghetti Incident?"', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 665, 'bleu_score': 0.8684737493381091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16650378587054197429}, 'section': 'Section::::Background.\n'}]}]