Question: what episode does emma die in once upon a time
[{'answer': 'The Final Battle', 'provenance': [{'wikipedia_id': '49666317', 'title': 'Once Upon a Time (season 6)', 'start_paragraph_id': 5, 'start_character': 458, 'end_paragraph_id': 5, 'end_character': 474, 'bleu_score': 1.0, 'section': 'Section::::Premise.\n'}]}]