CREATE TABLE table_204_225 (id NUMBER, "rank" NUMBER, "country/territory" CLOB, "miss supranational" NUMBER, "1st runner-up" NUMBER, "2nd runner-up" NUMBER, "3rd runner-up" NUMBER, "4th runner-up" NUMBER, "semifinalists" NUMBER, "total" NUMBER)

what is the difference in semifinalists between panama and vietnam ?
SELECT (SELECT "semifinalists" FROM table_204_225 WHERE "country/territory" = 'panama') - (SELECT "semifinalists" FROM table_204_225 WHERE "country/territory" = 'vietnam')
SELECT (SELECT "semifinalists" FROM "table_204_225" WHERE "country/territory" = 'panama') - (SELECT "semifinalists" FROM "table_204_225" WHERE "country/territory" = 'vietnam')