<div dir="ltr">Hi, I'm trying to map the library databas, the example cited by John Sowa in <a href="http://www.jfsowa.com/logic/ace.htm">this article</a> (and used by Rolf Schwitter in his <a href="http://www.ics.mq.edu.au/%7Erolfs/papers/DissBook.pdf">dissertation</a>) to a DRS structure using APE, this system is a set of rules. Here is an example of on them : <pre>If a copy of a book is checked out to a borrower and a staff member returns the copy then the copy is available. </pre> When I try to parse this rule using APE, many words are not known, "copy", "borrower ", "staff", "returns" and "available". Is there a ACE lexicon richer that the one I use (6.5) ? Best regards. -- Sincères salutations Mohammed NASRI </div>