That's cool man. Perhaps i'm missing something, i understand the nature of the prompt--or thought i did, but couldn't figure out why a base with doors, door drawer cabinets, base blind corners, sink cabinets, and drawer bank cabinets all return the same product code of C,2,B,0. And none of them return a subcategory other than NA (why the blind corner is included)

As i understood the diagram you linked to, all of these cabinets should return a different Category. The article says a base corner should return subcategory of C, but i'm getting 0. This is what i was referring to about seems like they got stripped down. 

Is there any more comprehensive documentation on this somewhere? Or maybe you could tell me what i'm not seeing?