Question: who has the most shops in the uk
[{'answer': 'Tesco', 'provenance': [{'wikipedia_id': '668680', 'title': 'List of supermarket chains in the United Kingdom', 'start_paragraph_id': 1, 'start_character': 101, 'end_paragraph_id': 1, 'end_character': 106, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]