CREATE TABLE table_63727 ("Rank" FLOAT, "Nation" TEXT, "Gold" FLOAT, "Silver" FLOAT, "Bronze" FLOAT, "Total" FLOAT)

Japan (JPN) with a total of less than 5, has what average gold medals?
SELECT AVG("Gold") FROM table_63727 WHERE "Nation" = 'japan (jpn)' AND "Total" < '5'
SELECT AVG("Gold") FROM "table_63727" WHERE "Nation" = 'japan (jpn)' AND "Total" < '5'