CREATE TABLE table_36781 ("Year" FLOAT, "Location" CLOB, "Gold" CLOB, "Silver" CLOB, "Bronze" CLOB)

Where did sohn bong-gak win silver?
SELECT "Location" FROM table_36781 WHERE "Silver" = 'sohn bong-gak'
SELECT "Location" FROM "table_36781" WHERE "Silver" = 'sohn bong-gak'