Question: how many publix stores are there in the united states
[{'answer': '1,231'}, {'provenance': [{'wikipedia_id': '544694', 'title': 'Publix', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 599, 'bleu_score': 0.886473199858392, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8757285730454905312}, 'section': 'Section::::Abstract.'}]}]