Question: who suffered the most casualties in world war 2
[{'answer': 'the Russian Republic'}, {'provenance': [{'wikipedia_id': '240900', 'title': 'World War II casualties', 'start_paragraph_id': 3, 'start_character': 131, 'end_paragraph_id': 3, 'end_character': 533, 'bleu_score': 0.7142386963613511, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6631430577533099492}, 'section': 'Section::::Abstract.'}]}]