Question: who sings the song if i could turn back the hands of time
[{'answer': 'R. Kelly', 'provenance': [{'wikipedia_id': '12483958', 'title': 'If I Could Turn Back the Hands of Time', 'start_paragraph_id': 1, 'start_character': 54, 'end_paragraph_id': 1, 'end_character': 62, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12483958', 'title': 'If I Could Turn Back the Hands of Time', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 394, 'bleu_score': 0.97451705556073, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13434800696575354903}, 'section': 'Section::::Abstract.'}]}]