Table schema:
CREATE TABLE table_290017_1 (subdivision_name___be____bgn_pcgn_ VARCHAR, subdivision_name___ru____bgn_pcgn_ VARCHAR)

Question: What is the subdivision name (BE) where subdivision name (RU) (BGN) is Grodnenskaya Oblast'?
SQL: SELECT subdivision_name___be____bgn_pcgn_ FROM table_290017_1 WHERE subdivision_name___ru____bgn_pcgn_ = "Grodnenskaya oblast'"