Two values are pertinent, strong and weak, which represent here respectively the so-called ``forme toniche" and ``forme atone". Please note that, at present, this feature with the relevant values is not encoded in our lexicon: it has been introduced here in order to model the class of personal pronouns in a typed hierarchy. However, being the subclasses of weak and strong personal pronouns two closed class, this feature could be always be encoded (with some problems of homographies occurring at text level, see below 5.6.3).