Question: when does rose come in grey's anatomy
[{'answer': 'season four', 'provenance': [{'wikipedia_id': '1660277', 'title': "Grey's Anatomy", 'start_paragraph_id': 7, 'start_character': 781, 'end_paragraph_id': 7, 'end_character': 792, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'provenance': [{'wikipedia_id': '1660277', 'title': "Grey's Anatomy", 'start_paragraph_id': 56, 'start_character': 0, 'end_paragraph_id': 56, 'end_character': 1148, 'bleu_score': 0.9372055820389401, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17564445530620439905}, 'section': 'Section::::Cast.:Recurring characters.\n'}]}]