Automatically classifying product description information includes selecting a first word from the information and determining whether the word is defined as a prefix within one or more keywords, each keyword being associated with one of a plurality of classes, each class being associated with one or more keywords. Specifically, the methods of the present invention comprise providing a substrate that has at least a first capillary channel disposed therein. Light from the light source is irradiated such that respective colors thereof, which constitute three primary colors, are sequentially changed over. The cathode terminal is provided with a through hole formed at a portion to be brought into contact with each of the capacitor elements. The tower houses saturated or superheated steam receivers in cavities with different orientations, with adaptive dynamic control of the heliostat field in order to direct said receivers towards different focusing points, for the production of electricity, process heat or solar fuels or for use in thermochemical processes. To disassemble the container, a user applies a load through the opening and against flexion portion.