static L<ParsedWithTokens<DeterminerPlusNoun>> ai_findSimplestNounPhrases(S s) {
  replace P with ParsedWithTokens.
  new L<P<DeterminerPlusNoun>> out;
  for (P<S> det : pwt_filter isDeterminer(pwt_initial(s, 2)))
    for (P<S> noun : pwt_stepRight_filter isNoun(1, det))
      out.add(pwt_combine(DeterminerPlusNoun(det!, noun!), det, noun));
  ret out;
}