CREATE TABLE table_53578 ("Race" TEXT, "Circuit" TEXT, "Date" TEXT, "Pole position" TEXT, "Fastest lap" TEXT, "Winning driver" TEXT, "Constructor" TEXT, "Tyre" TEXT, "Report" TEXT)

What was the fastest lap in the Belgian Grand Prix?
SELECT "Fastest lap" FROM table_53578 WHERE "Race" = 'belgian grand prix'
SELECT "Fastest lap" FROM "table_53578" WHERE "Race" = 'belgian grand prix'