A method and apparatus for using a classifier for processing a query are disclosed. The host of the luminescent layer is selected to include a solid organic material comprising a mixture of at least two components, one of which contains at least one perylene carbocyclic ring structure or at least one mono-aza-perylene or poly-aza-perylene ring structure and is capable of forming both monomer state and an aggregate state. The package is inserted into a spongy display panel for power supply. It is equipped with a sensor, which has a measuring device with which any liquid can be examined. The adhesive composition is used to make adhesive articles that, when applied to a substrate, remain removable or repositionable, even after long periods of time. The grillwork is adapted to releasably attach to the framework in the closed position.