Question: how many 7 elevens are in the world
[{'answer': '66,579'}, {'provenance': [{'wikipedia_id': '47420', 'title': '7-Eleven', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 418, 'bleu_score': 0.638711010894758, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7368961907250839136}, 'section': 'Section::::Abstract.'}]}]