CREATE TABLE table_203_374 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

did italy or spain receive a greater number of silver medals ?
SELECT "nation" FROM table_203_374 WHERE "nation" IN ('italy', 'spain') ORDER BY "silver" DESC LIMIT 1
SELECT "nation" FROM "table_203_374" WHERE "nation" IN ('italy', 'spain') ORDER BY "silver" DESC NULLS LAST LIMIT 1