class verb_extraction_topic
{
    %% Extraction by topicalization of an argument
    %% example: rares sont les personnes qui ...
    <: _verb_extraction;
    node(S2).bot.extraction = value(topic);
    node(S2).top.extraction = value(topic);
%%    node(S2).adj = value(no);
    desc.extraction = node(S2).bot.extraction;
%%    node(S).bot.extraction = node(S2).top.extraction;
    node(S).top.extraction = value(adjx);
    node(S).bot.extraction = value(adjx);
    node(S).bot = node(S).top;
%%    node(S).top.extraction = value(adjx);
    node XGroup : [cat: VMod ];
    node(S).top.mode = value(~infinitive);
%%    node(S).top.inv = value(~cl);
    node(v).cat = value(v);
}