Question: cocaethylene is produced as an active metabolite of
[{'answer': 'cocaine', 'provenance': [{'wikipedia_id': '1435243', 'title': 'Cocaethylene', 'start_paragraph_id': 1, 'start_character': 105, 'end_paragraph_id': 1, 'end_character': 112, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1435243', 'title': 'Cocaethylene', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 656, 'bleu_score': 0.978606533029418, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7571716021886923629}, 'section': 'Section::::Metabolic production from cocaine.\n'}]}]