CREATE TABLE table_43404 ("Nation" TEXT, "Skip" TEXT, "Third" TEXT, "Second" TEXT, "Lead" TEXT, "Alternate" TEXT, "Club" TEXT)

Who is the alternate for Magnus Swartling as Second?
SELECT "Alternate" FROM table_43404 WHERE "Second" = 'magnus swartling'
SELECT "Alternate" FROM "table_43404" WHERE "Second" = 'magnus swartling'