A method for managing dialogue interaction includes generating a hierarchical tree representation of a set of hierarchical data entities, and identifying a leaf node in the hierarchical tree representation. A first membrane is coupled to the frame and includes a seat portion with first and second openings. The thermal print head is used to print data and the ink jet print head is used to print marks of any of various contrasting colors. Unstable behavior of the motor vehicle is determined when deviation of actual measured value from the normal value increases. If the predetermined aspect is not found, the terminating node may be a non-mobile station, and the intermediate entity may perform vocoding.