Question: when did the first wimpy open in the uk
[{'answer': '1954', 'provenance': [{'wikipedia_id': '18758407', 'title': 'Wimpy (restaurant)', 'start_paragraph_id': 1, 'start_character': 275, 'end_paragraph_id': 1, 'end_character': 279, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18758407', 'title': 'Wimpy (restaurant)', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 440, 'bleu_score': 0.8915808216371951, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6281619114896443182}, 'section': 'Section::::History.:United Kingdom.\n'}]}]