How many distinct characteristic names does the product "cumin" have?
SELECT count ( DISTINCT t3.characteristic_name )  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   =   "cumin"
distinct characteristic names refers to COUNT(DISTINCT characteristic_name); product 'cumin' refers to WHERE product_name = 'cumin';