text: The house is made up of 24 layers of concrete, "printed" by a machine that sprays one layer on top of the other, then completes other stages such as the roof?
classes:  No, being able to spray one layer on top of the other requires extreme caution.  Also, being able to spray one layer on top of the other requires extreme caution.  Yes, being able to spray one layer on top of the other requires extreme caution.