Question: what group came to power because of the russian revolution of 1917
[{'answer': 'Bolsheviks', 'provenance': [{'wikipedia_id': '25762', 'title': 'Russian Revolution', 'start_paragraph_id': 3, 'start_character': 476, 'end_paragraph_id': 3, 'end_character': 486, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '25762', 'title': 'Russian Revolution', 'start_paragraph_id': 5, 'start_character': 101, 'end_paragraph_id': 5, 'end_character': 823, 'bleu_score': 0.7040634125478851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7750981747434689470}, 'section': 'Section::::Abstract.'}]}]