Question: who sang the song bang bang you shot me down
[{'answer': 'American singer - actress Cher', 'provenance': [{'wikipedia_id': '5720175', 'title': 'Bang Bang (My Baby Shot Me Down)', 'start_paragraph_id': 1, 'start_character': 59, 'end_paragraph_id': 1, 'end_character': 92, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5720175', 'title': 'Bang Bang (My Baby Shot Me Down)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 441, 'bleu_score': 0.9754554449993441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2991503264737894899}, 'section': 'Section::::Abstract.'}]}]