A system and method are provided for specifying a legality expression for use in a system for processing the legality expression. The substrate with its sensing surface is present in particular in a cavity of a module into which a feed line and a drain line for the fluid issue. The image acquisition device includes an assembly comprising a radiation emitter and detector rotatable about a patient for acquiring images of a portion of patient anatomy at different angles. Each of the metal fiber bundles comprises at least 30 metal fibers. The consumer may be able to communicate directly back to the power provider.