Top Shelf Company builds oak bookcases. Determine whether each of the following is a direct material $($DM$),$ direct labor $($DL$)$; manufacturing overhead $($MOH$),$ or a period $($P$)$ cost for Top Shelf.

$\backslash$table$[[1.$ Depreciation on factory equipment,$],[2.$ Depreciation on delivery trucks,$],[3.$ Wood used to build a bookcase,$],[4.$ Production supervisor's salary,$],[5.$ Glue and screws used in the bookcases,$],[6.$ Wages of persons who assemble the bookcases,$],[7.$ Cost to run an ad on local radio stations,$],[8.$ Rent for the factory,$],[9.$ CEO's salary,$],[10.$ Wages of person who sands the wood after it is cut,$]]$