class ArgComp_coord_block 
{
    + ArgComp_coord_block;
    <: _real_arg_xcomp;
    node(SArg).type=value(subst);
    node(SArg).top.sat = value(-);
    SArg +
        $arg.kind = value(scomp|vcomp|prepscomp|prepvcomp|vcompcaus|whcomp|vcompprog)
        ;
    SArg +
        $arg.kind = value(scomp|vcomp|prepscomp|prepvcomp|vcompcaus|vcompprog),
        node(SArg).top.extraction = value(-)
        |
        $arg.kind = value(whcomp)
        ;
    node SArg : [cat: S];
    node(SComp).adj = value(no);
}