Question: who won the arms race in the cold war
[{'answer': 'The United States', 'provenance': [{'wikipedia_id': '585704', 'title': 'Nuclear arms race', 'start_paragraph_id': 8, 'start_character': 341, 'end_paragraph_id': 8, 'end_character': 358, 'bleu_score': 1.0, 'section': 'Section::::World War II.\n'}]}, {'provenance': [{'wikipedia_id': '585704', 'title': 'Nuclear arms race', 'start_paragraph_id': 44, 'start_character': 0, 'end_paragraph_id': 44, 'end_character': 670, 'bleu_score': 0.772512065854406, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 690324670514785615}, 'section': 'Section::::Détente.:Treaties.\n'}]}]