Question: from which language family did the russian language descend
[{'answer': 'Slavic languages', 'provenance': [{'wikipedia_id': '26757', 'title': 'Slavic languages', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26757', 'title': 'Slavic languages', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 421, 'bleu_score': 0.8471128925880641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5364530860522554200}, 'section': 'Section::::Abstract.'}]}]