static S conceptLanguageToEnglish_superSimple(S s) {
  Map<S, AIConcept> map = aiConceptsMap_cached();
  L<S> tok = javaTok(s);
  for (int i = 1; i < l(tok); i += 2) {
    AIConcept c = map.get(tok.get(i));
    if (c != null)
      tok.set(i, quote(c.name));
  }
  ret join(tok);
}