In one instance, the invention provides a substrate for growing a thick layer of group III nitride. The contacts have a first contact including a first base portion and a first soldering portion extending downwardly from the first base portion, a second contact having a second base portion and a second soldering portion extending downwardly from the second base portion. The valve body has a discharge port extending laterally from the passageway. The cinching cord is substantially disposed between the outer and intermediate fabric layers, and extends through the cord-letting apertures for forming opposing cord-linking loops. The consumption amount is predicted in consideration of an image process in a printer and a designation of a variable print.