Question: when did elton john sing candle in the wind
[{'answer': '1997', 'provenance': [{'wikipedia_id': '1784929', 'title': 'Candle in the Wind', 'start_paragraph_id': 2, 'start_character': 3, 'end_paragraph_id': 2, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]