Question: what country controlled north korea after world war 2
[{'answer': 'United States', 'provenance': [{'wikipedia_id': '325746', 'title': 'Division of Korea', 'start_paragraph_id': 1, 'start_character': 167, 'end_paragraph_id': 1, 'end_character': 180, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Soviet Union', 'provenance': [{'wikipedia_id': '325746', 'title': 'Division of Korea', 'start_paragraph_id': 1, 'start_character': 117, 'end_paragraph_id': 1, 'end_character': 129, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]