CREATE TABLE table_203_320 (id NUMBER, "rank in\ 2011" NUMBER, "name of\ concern" CLOB, "location of\ headquarters" CLOB, "revenue\ ( thou.\ pln ) " NUMBER, "profit\ ( thou.\ pln ) " NUMBER, "employees" NUMBER)

what is the number of employees who work for pgnig sa ?
SELECT "employees" FROM table_203_320 WHERE "name of\nconcern" = 'pgnig sa'
SELECT "employees" FROM "table_203_320" WHERE "name of\nconcern" = 'pgnig sa'