Question: when does jo come into grey's anatomy
[{'answer': 'July 2012', 'provenance': [{'wikipedia_id': '31307770', 'title': 'Camilla Luddington', 'start_paragraph_id': 11, 'start_character': 474, 'end_paragraph_id': 11, 'end_character': 483, 'bleu_score': 1.0, 'section': 'Section::::Career.:Television.\n'}]}, {'provenance': [{'wikipedia_id': '31307770', 'title': 'Camilla Luddington', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 881, 'bleu_score': 0.844061127984384, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10384002256932953685}, 'section': 'Section::::Career.:Television.\n'}]}]