Question: how many locations does mcdonald's have in the us
[{'answer': 'approximately 36,900'}, {'provenance': [{'wikipedia_id': '2480627', 'title': "McDonald's", 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 834, 'bleu_score': 0.747266948242514, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 166233869406145118}, 'section': 'Section::::Abstract.'}]}]