class subordonate
{
    %% subordonate are filled by substitution in some auxiliary tree
    node SubS : [cat: S, type: subst, id: SubS];
    node(SubS).bot = node(SubS).top;
    %% Subordonates have no extraction
    node(SubS).top.extraction = value(-|topic);
    %% They are without final punctuation
    node(SubS).top.sat = value(-|ppart);
    %% No subject inversion (may have within CS)
    %%    node(S).top.inv = value(-);
    %% Unsaturated participiale agree with main sentence
    %% given by Foot
    SubS +
        node(SubS).top.mode = value(participle|gerundive),
        node(SubS).top.inv = value(-),
        node(SubS).top.extraction = value(-),
        ( node(SubS).top.sat = value(-),
          ( node(Foot).cat = value(coo)
            |
            node(Foot).cat = value(~coo),
            node(Foot).top.number = node(SubS).bot.number,
            node(Foot).top.person = node(SubS).bot.person,
            node(Foot).top.gender = node(SubS).bot.gender
            )
          |
          node(SubS).top.sat = value(ppart)
          )
        |
        node(SubS).top.mode = value(~participle|gerundive),
        node(SubS).top.sat = value(-)
        ;
}