Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_30887 ( "Code" text, "Subdivision name ( be ) (BGN/PCGN)" text, "Subdivision name ( be ) (GOST)" text, "Subdivision name ( ru ) (BGN/PCGN)" text, "Subdivision name ( ru ) (GOST)" text, "Subdivision category" text )

### Question ###
What is the subdivision name (BE) where subdivision name (RU) (BGN) is Grodnenskaya Oblast'?

### Accurate SQL ###

SELECT "Subdivision name ( be ) (BGN/PCGN)" FROM table_30887 WHERE "Subdivision name ( ru ) (BGN/PCGN)" = 'Grodnenskaya oblast'