static void ai_spec_answerPattern() {
  if (!ai_postingInSubSpace()) ret;
  for (S q : ai_texts("Question", "is", "$X")) {
    for (Pair<S> p : printStruct("patterns", ai_texts_xy("$X", "is an answer pattern for", "$Y"))) {
      SS match = matchDollarVarsIC(unquote(p.b), q);
      if (match != null)
        post(".", "Look for answer pattern", p.a);
    }
  }
}