A solution for fabricating a structure including a light guiding structure is provided. The article support includes a plurality of supporting protrusions that define a support zone for providing a plane of support. By applying the foundation according to the present invention, stress concentrations and torques in the node member are reduced, whereby it becomes possible to apply a relatively lightweight and hence cheap node member. A conductive operating state of the transistor arrangement allows formation of induced loop current in the transistor arrangement, and a nonconductive operating state of the transistor arrangement inhibits formation of induced loop current in the transistor arrangement. A hose can be connected to a connector at an inlet on one of the lower reservoir’s sidewalls. For a given data exchange, a data exchange type is selected in accordance with data to be exchanged, and a message frame is formed in accordance with the data exchange type selected, the message including a code identifying the data exchange type.