How many products do you have?
select count ( * ) from products
Find the number of characteristics that the product "caraway" has.
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 = "caraway"
Finally, can you provide the number of characteristics of the product with the name "flax"?
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 = "flax"