static S ai_specReturn_answerToExternalQuestion(S q, Var<S> answer) {
  answer.set("[Calculating...]");
  q = switcheroo(q);
  print("Switcheroo to: " + q);
  T3<S> t = ai_tripelize(q);
  print("Have triple: " + t);
  if (t == null) ret "[Couldn't tripelize]";
  /*t = ai_switcherooTriple(t);
  print("Have switched triple: " + t);*/
  
  T3 tFact = ai_tripleWithoutQuestionMark(t);
  if (has_verbose(tFact)) ret "Yes";
  
  T3 tNot = ai_negateTriple(t);
  if (has_verbose(tNot)) ret "No";
  
  try answer ai_answerIsQuestion(t);
  try answer ai_answerWhatQuestion(t);

  S unknown = ai_findUnknownThingInTriple(t);
  if (unknown != null) ret "What is " + unknown + "?";
  
  ret "[No answer found for: " + ai_renderTriple(t) + "]";
}

static double ai_specReturn_answerToExternalQuestion_defaultTimeout = 10.0;

static S ai_specReturn_answerToExternalQuestion(fS q) {
  ret ai_specReturn_answerToExternalQuestion(ai_specReturn_answerToExternalQuestion_defaultTimeout, q);
}

static S ai_specReturn_answerToExternalQuestion(double timeout, fS q) {
  final new Var<S> answer;
  evalWithTimeout(timeout, r {
    setVarUnlessNull(answer, ai_specReturn_answerToExternalQuestion(q, answer))
  });
  ret answer!;
}