Question: when does dr owen come to grey's anatomy
[{'answer': 'season five', 'provenance': [{'wikipedia_id': '20104120', 'title': 'Owen Hunt', 'start_paragraph_id': 1, 'start_character': 307, 'end_paragraph_id': 1, 'end_character': 318, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '20104120', 'title': 'Owen Hunt', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 712, 'bleu_score': 0.9467212234744471, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12286861302279303673}, 'section': 'Section::::Abstract.'}]}]