CREATE TABLE table_50866 ("Tournament" CLOB, "Surface" CLOB, "Week" CLOB, "Winner" CLOB, "Finalist" CLOB, "Semifinalists" CLOB)

WHich Tournament has a Finalist of marat safin (12)?
SELECT "Tournament" FROM table_50866 WHERE "Finalist" = 'marat safin (12)'
SELECT "Tournament" FROM "table_50866" WHERE "Finalist" = 'marat safin (12)'