Question: what is the highest area of land in russia
[{'answer': 'Mount Elbrus', 'provenance': [{'wikipedia_id': '25702', 'title': 'Geography of Russia', 'start_paragraph_id': 64, 'start_character': 211, 'end_paragraph_id': 64, 'end_character': 223, 'bleu_score': 1.0, 'section': 'Section::::Topography and drainage.:Topography.:Caucasus Mountains.\n'}]}, {'provenance': [{'wikipedia_id': '25702', 'title': 'Geography of Russia', 'start_paragraph_id': 64, 'start_character': 0, 'end_paragraph_id': 64, 'end_character': 576, 'bleu_score': 0.977897140678983, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13220889756375212151}, 'section': 'Section::::Topography and drainage.:Topography.:Caucasus Mountains.\n'}]}]