CREATE TABLE table_203_630 (id NUMBER, "rank" NUMBER, "nation" CLOB, "gold" NUMBER, "silver" NUMBER, "bronze" NUMBER, "total" NUMBER)

did italy or norway have 51 total medals ?
SELECT "nation" FROM table_203_630 WHERE "nation" IN ('italy', 'norway') AND "total" = 51
SELECT "nation" FROM "table_203_630" WHERE "nation" IN ('italy', 'norway') AND "total" = 51