Question: what type of government did soviet union have during ww2
[{'answer': 'Socialist', 'provenance': [{'wikipedia_id': '27475272', 'title': 'Government of the Soviet Union', 'start_paragraph_id': 1, 'start_character': 118, 'end_paragraph_id': 1, 'end_character': 127, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]