CREATE TABLE table_9940 ("Rank" TEXT, "Nation" TEXT, "Gold" FLOAT, "Silver" FLOAT, "Bronze" FLOAT, "Total" FLOAT)

what is the silver when the nation is japan and the total is less than 1?
SELECT SUM("Silver") FROM table_9940 WHERE "Nation" = 'japan' AND "Total" < '1'
SELECT SUM("Silver") FROM "table_9940" WHERE "Nation" = 'japan' AND "Total" < '1'