class superlative_as_adv_mod 
{
    <: superlative_as_mod;
    node(Foot).cat = value(adv);
    node(Foot).top.adv_kind = value(~intensive|equalizer|très);
    node(det).bot = value([number:sg, gender: masc, poss: -]);
    node(Foot).top.adv_kind=node(Root).bot.adv_kind;
}