Question: when did kenny stop dying in south park
[{'answer': 'season six', 'provenance': [{'wikipedia_id': '152995', 'title': 'Kenny McCormick', 'start_paragraph_id': 8, 'start_character': 9, 'end_paragraph_id': 8, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Deaths.\n'}]}, {'provenance': [{'wikipedia_id': '152995', 'title': 'Kenny McCormick', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 850, 'bleu_score': 0.943595104031627, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4718712845575109010}, 'section': 'Section::::Deaths.\n'}]}]