class verb_categorization_passive 
{
    <: verb_categorization;
    desc.ht.diathesis = value(passive);
    $arg1::arg.kind = value(subj);
    $arg1::arg.pcas = value(-);
    $arg0::arg.kind = value(-|prepobj);
    $arg0::arg.pcas = value(-|par|contre);
    $arg2::arg.kind = value(-|prepobj|prepvcomp|prepscomp|prepacomp|acomp|scomp);
    $arg2::arg.pcas = value(~par);
    %% Passive voice and imperative mood are incompatible
    %% false!
    %% exemple: soyez assuré de mon soutien !
    %% node(Infl).top.mode = value(~imperative);
    %% some redondancy to help
    node(v).bot.mode = value(participle);
    node(v).bot.aux_req = value(être);
    node(v).bot.diathesis = value(passive);
}