48. The system of claim 47 , wherein the synonym recognition unit is for considering how much content within the fields are similar and how much content within the fields are dissimilar, in determining whether the document contains any synonyms with terms that occur in the further document.
47. The system of claim 42 , wherein the synonym recognition unit is for identifying similar content within at least one field that occurs within the document and the further document, and for identifying dissimilar content within the field.