Read the map before you add a box

A vendor slide arrivesSeeThe slide has a logo anda verb.LogoFindYou find the row in themap, or you do not.RowWriteA missing row is aquestion, not a yes.GapTwoIf two products share abrand, you name both.SplitCiteThe link is the one fromthe lesson.AdminBuyThe purchase waits onthe row.Admin

The row says how they meet.

Sources and go deeper