CREATE TABLE table_33306 ("Year" FLOAT, "Gold" CLOB, "Silver" CLOB, "Bronze" CLOB, "Venue" CLOB)

Where was 2010 tournament where the United States received the silver?
SELECT "Venue" FROM table_33306 WHERE "Silver" = 'united states' AND "Year" = '2010'
SELECT "Venue" FROM "table_33306" WHERE "Silver" = 'united states' AND "Year" = '2010'