Question: which country in europe recently voted to leave the european union
[{'answer': 'The UK', 'provenance': [{'wikipedia_id': '41688778', 'title': 'Brexit', 'start_paragraph_id': 2, 'start_character': 240, 'end_paragraph_id': 2, 'end_character': 246, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]