class adv_N2
{
    %% Adverbs on N2
    %% may adjoin on both sides
    %% example: environ 10 ovules
    %% example: 10 ovules environ
    <: adv_modifier;
    node Root : [cat: N2];
    node Foot : [bot: [headcat: nc|adj|pro]];
    node(Adv).bot.adv_kind = value(modnc);
}