class verb_categorization_active 
{
    <: verb_categorization;
    desc.ht.diathesis= value(active);
    $arg0::arg.kind = value(subj|nosubj);
    %% obj may only occur as arg1 to ensure at most one occurrence
    $arg1::arg.kind = value(~subj|nosubj);
    $arg2::arg.kind = value(~subj|nosubj|obj);
    %% To handle support verb
    %% Example: prendre garde
    <: real_special_arg_ncpred;
    v +
        $arg1::arg.kind = value(scomp|whcomp|prepscomp|prepvcomp|vcompcaus|vcomp|vcompprog),
        $arg1::arg.real = value(CS|S|PP),
        $arg1::arg.extracted = value(-|cleft|topic),
        $arg2::arg.kind = value(~vcomp|scomp|whcomp|prepscomp|prepvcomp|prepacomp|vcompcaus|vcompprog)
        |
        $arg1::arg.kind = value(~vcomp|scomp|whcomp|prepscomp|prepvcomp|vcompcaus|vcompprog),
        (
            $arg1::arg.kind = value(~acomp),
            $arg2::arg.kind = value(acomp)
            |
            $arg2::arg.kind = value(~acomp)
         )
        ;
    v +
        $arg1::arg.function = value(obj),
        ($arg1::arg.real = value(cla) | $arg1::arg.extracted = value(~-)),
        desc.dummy.objinfo.number = value(pl),
        desc.dummy.objinfo.gender = node(Infl).top.quant.gender,
        node(Infl).top.quant.function = value(obj)
        |
        node(Infl).top.quant.function=value(subj|-)
        ;
}