http://de639-1.blogspot.com/2016/09/nl-wikipedia-text-tweedehands-2nd-hand.html
... an example of text processing using STRINGSRESEARCH software at above url. IQ processing indicates the number of times each word appears in a text of any language. For words that appear uniquely or only once in the text the numberal 1 is omitted and these words are not tagged. All other words are tagged by their frequency in the text.
... words which appear only once in the text are important because they form associations that a native speaker would make when reading the text. The associations can be shown by silhouetting the other higher-frequency words of the text.
