Question: how many times has the winter olympics been held in the usa
[{'answer': 'four', 'provenance': [{'wikipedia_id': '34069', 'title': 'Winter Olympic Games', 'start_paragraph_id': 1, 'start_character': 87, 'end_paragraph_id': 1, 'end_character': 91, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '34069', 'title': 'Winter Olympic Games', 'start_paragraph_id': 4, 'start_character': 11, 'end_paragraph_id': 4, 'end_character': 855, 'bleu_score': 0.699405892894548, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4584200324357858823}, 'section': 'Section::::Abstract.'}]}]