user: Question: What cods have a subdivision name (RU) of Grodnenskaya oblast'?
Columns: ['Code', 'Subdivision name ( be ) (BGN/PCGN)', 'Subdivision name ( be ) (GOST)', 'Subdivision name ( ru ) (BGN/PCGN)', 'Subdivision name ( ru ) (GOST)', 'Subdivision category']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['BY-BR', "Brestskaya voblasts'", "Brèsckaja voblasc'", "Brestskaya oblast'", "Brestskaja oblast'", 'oblast']
SQL:

assistant: SELECT "Code" FROM "Table" WHERE "Subdivision name ( ru ) (BGN/PCGN)" = 'Grodnenskaya oblast''';