Question: country with most olympic gold medals all time
[{'answer': 'United States'}, {'provenance': [{'wikipedia_id': '3729318', 'title': 'All-time Olympic Games medal table', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5417264260278172690}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2112059', 'title': 'United States at the Olympics', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['United States', 'U.S. athletes have won a total of 2,522 medals (1,022 of them gold) at the Summer Olympic Games, more than any other nation', 'United States']}}]}]