Question: which country has won the most olympic titles
[{'answer': 'United States', 'provenance': [{'wikipedia_id': '22359', 'title': 'List of Olympic medalists in basketball', 'start_paragraph_id': 1, 'start_character': 250, 'end_paragraph_id': 1, 'end_character': 263, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '22359', 'title': 'List of Olympic medalists in basketball', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 822, 'bleu_score': 0.9861583350689591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1936739570872174209}, 'section': 'Section::::Abstract.'}]}]