An apparatus, system, and method are disclosed for caching data. In one environment, the input linguistic item corresponds to a complaint by a person receiving medical care, and the normalized linguistic item corresponds to a definitive and error-free version of that complaint. Poly-amplitude codes permit successive interference cancellation in spatial and frequency-domain processing. This process can be used as part of a custom layout design process, for example. The valve further includes the above noted translating member, which is secured to the housing and at least partly bounds the variable volume region. The cavity includes opposed side walls and at least one divider wall extending therebetween.