CREATE TABLE table_56886 ("Driver" CLOB, "Constructor" CLOB, "Laps" FLOAT, "Time/Retired" CLOB, "Grid" FLOAT)

How many laps had a grid number of 7?
SELECT SUM("Laps") FROM table_56886 WHERE "Grid" = '7'
SELECT SUM("Laps") FROM "table_56886" WHERE "Grid" = '7'