Question: nation that russia was once a part of
[{'answer': 'Union of Soviet Socialist Republics', 'provenance': [{'wikipedia_id': '1609192', 'title': 'Post-Soviet states', 'start_paragraph_id': 1, 'start_character': 225, 'end_paragraph_id': 1, 'end_character': 260, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1609192', 'title': 'Post-Soviet states', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 817, 'bleu_score': 0.640604558940716, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15934098506786789892}, 'section': 'Section::::Abstract.'}]}]