1. An assignment device ( 1 ) with assignment means ( 4 ) for assigning supplementary information to one or more words of text information (ETI), characterized in that the assignment means ( 4 ) is designed to assign word class information (WKI) to one or more words of text information (ETI), and to deliver word-class sequence information (WK-AI) containing the assigned word-class information (WKI), and that linkage means ( 7 ) designed to detect the presence of at least two specific items of word-class information (WKI) in the word-class sequence information (WK-AI) and to deliver the corresponding linkage information (VI) is provided, and that action means ( 10 ) designed to activate an action (A) when specific linkage information (VI) or a specific combination of linkage information (VI) is delivered by the linkage means ( 7 ) is provided.