CREATE TABLE table_203_568 (id DECIMAL, "town/village" TEXT, "population" DECIMAL, "postal code" TEXT, "municipality" TEXT, "island" TEXT, "location" TEXT)

f mjin and fro ba are located on which island ?
SELECT "island" FROM table_203_568 WHERE "town/village" = 'famjin'
SELECT "island" FROM "table_203_568" WHERE "town/village" = 'famjin'