Question: when was the last time an 11 seed went to the elite eight
[{'answer': '2018', 'provenance': [{'wikipedia_id': '735272', 'title': 'Elite Eight', 'start_paragraph_id': 2, 'start_character': 486, 'end_paragraph_id': 2, 'end_character': 490, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '735272', 'title': 'Elite Eight', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 490, 'bleu_score': 0.825938084333755, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15048617392123986595}, 'section': 'Section::::Abstract.'}]}]