An arrangement for adapting statistical parsers to new data using a mathematical transform, particularly a Markov transform. A few of the intermediate compounds for use in the process in accordance with the invention are novel compounds and the invention also relates to these novel intermediate compounds. One of the plurality of control lines is deactivated when the error flag line is indicating that a fault is present. A lens is mounted to the lower surface of the panel for enclosing the light-emitting section of the lamp.