A bodywork part is provided with an integrated antenna arrangement and with a carrier unit on which the antenna arrangement is detachably arranged. A cationic microfibrillated plant fiber that is cationically modified with a quaternary-ammonium-group-containing compound, and that has an average diameter of 4 to 200 nm. This information is extracted to identify state elements with paths having min-time violations. This method collects data on many questions while avoiding respondent fatigue by serving the questions in small numbers over time.