The following reaction results in a cyclic product.What is the product,and show a mechanism for the following reaction. 
Definitions:
Monopolies
Market structures where a single producer or seller controls the entire supply of a product or service, often leading to reduced competition.
Efficient Level Output
The Efficient Level Output refers to the quantity of production that achieves the highest possible efficiency in terms of cost and resource usage, often where marginal costs equal marginal revenue.
Profit-maximizing Price
The price level at which a business can achieve the highest possible profit, given its production costs and demand for its products.
Break-even
The point at which total cost and total revenue are equal, meaning there is no net loss or gain.
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