Question: when did they ban smoking in hospitals uk
[{'answer': 'by 2006', 'provenance': [{'wikipedia_id': '5744399', 'title': 'Smoking ban in England', 'start_paragraph_id': 6, 'start_character': 216, 'end_paragraph_id': 6, 'end_character': 223, 'bleu_score': 1.0, 'section': 'Section::::Passage of the law.\n'}]}, {'provenance': [{'wikipedia_id': '5744399', 'title': 'Smoking ban in England', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 340, 'bleu_score': 0.96746874041754, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14049558697710750310}, 'section': 'Section::::Passage of the law.\n'}]}]