static S ai_spec_allWords_debug(S _s) {
  S s = unquote(_s);
  L<S> l = javaTokC(s);
  print("l=" + sfu(l));
  if (l(l) > 1)
    for (S t : l)
      if (l(t) > 1)
        ai_postTriple_verbose(_s, "possibly related to:", t);
  ret _s;
}