ผลิตภัณฑ์ชื่อ 'ลอเรล' มีคุณสมบัติกี่ประการ?ไม่จำเป็นต้องใช้ตารางทั้งหมด
How many characteristics does the product named 'laurel' have?It is not neccessary to use all the tables.
 ref_characteristic_types:  characteristic_type_code [ text]  characteristic_type_description [ text] 
SELECT COUNT(*) FROM products AS t1 JOIN product_characteristics AS t2 ON t1.product_id = t2.product_id JOIN characteristics AS t3 ON t2.characteristic_id = t3.characteristic_id WHERE t1.product_name = "laurel"