ใครคือผู้ผลิต Henk Vd Lagemaat?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
Who is the manufacturer for Henk Vd Lagemaat?It is not neccessary to use all the tables.
 table_name_68:  manufacturer [ VARCHAR]  rider [ VARCHAR] 
SELECT manufacturer FROM table_name_68 WHERE rider = "henk vd lagemaat"