What are the names of the ordered products that have profit deficiency in central superstore?
names of the ordered products refers to Product Name; deficiency refers to profit value is negative; profit > 0
SELECT DISTINCT T2.`Product Name` FROM central_superstore AS T1 INNER JOIN product AS T2 ON T1.`Product ID` = T2.`Product ID` WHERE T2.Region = 'Central' AND T1.Profit < 0