Question: what country dominated eastern europe after world war ii
[{'answer': 'the Soviet Union', 'provenance': [{'wikipedia_id': '7062377', 'title': 'Aftermath of World War II', 'start_paragraph_id': 1, 'start_character': 160, 'end_paragraph_id': 1, 'end_character': 176, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7062377', 'title': 'Aftermath of World War II', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 1184, 'bleu_score': 0.850971030863862, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15015888273167688694}, 'section': 'Section::::Abstract.'}]}]