class sep_sentence_punct 
{
    <: spunct_unsat;
    Root >> S2; node S2 : [id: S, cat: S, type: subst ];
    Punct < S2;
    node(Punct).lex = value(';'|':'|'.'|',');
    node(S).top.xarg.trace=value(-);
    node(S2).top.xarg.trace=value(-);
    node(S2).top.extraction = value(~rel);
    node(S).top.extraction = value(~rel);
    node(S2).top.sat = value(~ppart);
    desc.dependency = value('juxt');                                        
}