Question: who sang don't know what you got till it's gone
[{'answer': 'Cinderella', 'provenance': [{'wikipedia_id': '8598850', 'title': "Don't Know What You Got (Till It's Gone)", 'start_paragraph_id': 1, 'start_character': 120, 'end_paragraph_id': 1, 'end_character': 130, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8598850', 'title': "Don't Know What You Got (Till It's Gone)", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 301, 'bleu_score': 0.9154609559890831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10941867942278397635}, 'section': 'Section::::Abstract.'}]}]