A method is provided for predicting a value of a first variable based on values of a plurality of additional variables, values of a plurality of first coefficients, and values of a plurality of second coefficients. The torso support portion may comprise a rear panel adjustable secured between two body panels. Since the feedback gain is changed by changing the laser temperature, an RF feedback gain, with which MO signals are not deteriorated by the change of the laser temperature, can be set. When there are several assignable areas, a target content is assigned to an area having a highest region value. That second query can be applied to the RDF triples data store in order to identify andor retrieve the desired data.