A relation that indicates the price of a product that the seller quotes to a potential buyer. For example, to say that the list price of Cup001 is $40, (= (list-price Cup001) (* 40 US-Dollar)).
(=> (And (Currency-Transferred ?Buy ?Price) (Object-Sold ?Buy ?Prod)) (List-Price ?Prod ?Price)) (=> (And (List-Price ?Prod ?Price) (Object-Sold ?Buy ?Prod)) (Currency-Transferred ?Buy ?Price)) (=> (List-Price $X $Y) (Product $X)) (=> (List-Price $X $Y) (Currency-Quantity $Y))