The present invention is directed to multipurpose containers in which a variety of items can be stored, such as eyeglasses writing instruments, pills, medicines, thermometers, rulers, note pads, to name a few of the nearly limitless number of items that can be stored. On the basis of a previously formed table, a color space is expressed by a basic triangle of white-primary color-black, and output signal values corresponding to lattice points in this basic triangle are calculated by linear interpolation. The information generating unit then automatically generates the process location information based on the mask generation request. In marine mode, the helmsman sits on cushion 10; in road mode, the driver sits on cushion 12. Also, the addition of the fire retardant to green wood chips, without the need to dry them to a low moisture content, is believed to be novel. Subjecting these to a curing system functions to consolidate the cross supports and multi-layered nodes to produce the composite lattice support structure.