Question: who wrote the song i look to you by whitney houston
[{'answer': 'R. Kelly', 'provenance': [{'wikipedia_id': '23780222', 'title': 'I Look to You (song)', 'start_paragraph_id': 2, 'start_character': 42, 'end_paragraph_id': 2, 'end_character': 50, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '23780222', 'title': 'I Look to You (song)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 539, 'bleu_score': 0.979896933041101, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2799217718686778273}, 'section': 'Section::::Abstract.'}]}]