Question: when does peyton and lucas leave one tree hill
[{'answer': 'Season six', 'provenance': [{'wikipedia_id': '18274425', 'title': 'One Tree Hill (season 6)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18274425', 'title': 'One Tree Hill (season 6)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 186, 'bleu_score': 0.9364250605898111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 556089311016951927}, 'section': 'Section::::Abstract.'}]}]