Question: who sings empire state of mind with jay z
[{'answer': 'Alicia Keys', 'provenance': [{'wikipedia_id': '23969660', 'title': 'Empire State of Mind', 'start_paragraph_id': 1, 'start_character': 104, 'end_paragraph_id': 1, 'end_character': 115, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '23969660', 'title': 'Empire State of Mind', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 732, 'bleu_score': 0.565150742158918, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11313171589876984296}, 'section': 'Section::::Abstract.'}]}]