Question: who sings the song where have you been
[{'answer': 'Rihanna', 'provenance': [{'wikipedia_id': '33657463', 'title': 'Where Have You Been', 'start_paragraph_id': 1, 'start_character': 52, 'end_paragraph_id': 1, 'end_character': 59, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '33657463', 'title': 'Where Have You Been', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 751, 'bleu_score': 0.984904577301502, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16769921817947014070}, 'section': 'Section::::Abstract.'}]}]