Question: when was the welfare state introduced to britain
[{'answer': '1906', 'provenance': [{'wikipedia_id': '217715', 'title': 'Welfare state in the United Kingdom', 'start_paragraph_id': 7, 'start_character': 106, 'end_paragraph_id': 7, 'end_character': 110, 'bleu_score': 1.0, 'section': 'Section::::History.:Liberal reforms.\n'}]}, {'provenance': [{'wikipedia_id': '217715', 'title': 'Welfare state in the United Kingdom', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 176, 'bleu_score': 0.816927647530702, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3397437460288045825}, 'section': 'Section::::History.:Liberal reforms.\n'}]}]