What is the buying price of the product named "cumin"?
select typical_buying_price from products where product_name = "cumin"
What are its product characteristic values?
select t2.product_characteristic_value from products as t1 join product_characteristics as t2 on t1.product_id = t2.product_id where t1.product_name = "cumin"
Show its characteristic names.
select 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"
Count how many distinct ones there are.
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"