Question: when does naruto start training with killer bee
[{'answer': '256', 'provenance': [{'wikipedia_id': '34326305', 'title': 'Naruto: Shippuden (season 12)', 'start_paragraph_id': 4, 'start_character': 145, 'end_paragraph_id': 4, 'end_character': 148, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]