CREATE TABLE table_204_771 (id NUMBER, "rank" NUMBER, "nation" CLOB, "gold" NUMBER, "silver" NUMBER, "bronze" NUMBER, "total" NUMBER)

what is the number of silver medals won by peru and ecuador combined ?
SELECT SUM("silver") FROM table_204_771 WHERE "nation" IN ('peru', 'ecuador')
SELECT SUM("silver") FROM "table_204_771" WHERE "nation" IN ('peru', 'ecuador')