A method is provided for operating a directory assistance system. In response to an operation to release the locked state, the processor executes a process of referring to the information and starting up or displaying an application associated with the unlocking method used to release the locked state. A level sensor 28 detects fluid level of stored seam paste in the pressure tank 20, and a detection signal is input to a controller 30. This polymer and polynucleotides form a strong interaction that may be utilized in separation techniques for polynucleotides, and for stabilizing polynucleotides on a surface. The second session is configured to authorize, based in part on the registrant identification data, access to at least a portion of a website associated with the subscriber server.