The “construction” is a cost optimization pioneered by Benihana. Instead of having 12 menu items based on 12 different ingredients, which would end up with more

The “construction” is a cost optimization pioneered by Benihana. Instead of having 12 menu items based on 12 different ingredients, which would end up with more wastage at the end of the day (or running out of product if you kept smaller inventories), you provide 12 menu items by combining one of 3 choices with one of 4 choices. Boom, you’re only inventorying 7 items now.