Question: what season of greys anatomy was in 2011
[{'answer': 'The eighth season', 'provenance': [{'wikipedia_id': '31748634', 'title': "Grey's Anatomy (season 8)", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '31748634', 'title': "Grey's Anatomy (season 8)", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 432, 'bleu_score': 0.9394416530026861, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5134633480231079061}, 'section': 'Section::::Abstract.'}]}]