CREATE TABLE table_44668 ("Rider" TEXT, "Manufacturer" TEXT, "Laps" TEXT, "Time/Retired" TEXT, "Grid" TEXT)

Who is the manufacturer for Henk Vd Lagemaat?
SELECT "Manufacturer" FROM table_44668 WHERE "Rider" = 'henk vd lagemaat'
SELECT "Manufacturer" FROM "table_44668" WHERE "Rider" = 'henk vd lagemaat'