CREATE TABLE table_15229 ("Rank" FLOAT, "Heat" FLOAT, "Lane" FLOAT, "Nation" TEXT, "Time" TEXT)

In what heat did the swimmer in Lane 6 rank higher than 7 with a time of 4:08.27?
SELECT SUM("Heat") FROM table_15229 WHERE "Lane" = '6' AND "Time" = '4:08.27' AND "Rank" > '7'
SELECT SUM("Heat") FROM "table_15229" WHERE "Lane" = '6' AND "Rank" > '7' AND "Time" = '4:08.27'