CREATE TABLE table_70918 ("Rank" CLOB, "Nation" CLOB, "Gold" FLOAT, "Silver" FLOAT, "Bronze" FLOAT, "Total" FLOAT)

With less than 7 Silver medals, how many Gold medals did Canada receive?
SELECT MAX("Gold") FROM table_70918 WHERE "Nation" = 'canada' AND "Silver" < '7'
SELECT MAX("Gold") FROM "table_70918" WHERE "Nation" = 'canada' AND "Silver" < '7'