Question: who played guitar on whitesnake still of the night
[{'answer': 'John Sykes', 'provenance': [{'wikipedia_id': '18342279', 'title': 'Still of the Night (song)', 'start_paragraph_id': 2, 'start_character': 66, 'end_paragraph_id': 2, 'end_character': 76, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]