10. A knowledge structure as claimed in claim 9 , wherein at least one of the elements is a word.
9. A knowledge structure as claimed in claim 8 , wherein the identifying information includes a first identification value indicating whether the element is a word, a phrase, or a symbol, a second identification value indicating which language is the word or phrase, a third identification value indicating the type of word or phrase, a fourth identification value indicating the class of word, and fifth identification value indicating the form of the word.