sbool solvableSmartQuestions_debug;

static MultiMap<S, S> solvableSmartQuestions() {
  Map<Long, O> concepts = safeLoadConcepts("#1005320");
  new MultiMap<S, S> map;
  for (O ua : valuesOfType(concepts, "main$UserAnswer")) {
    bool solvable = getBool(ua, "solvable");
    S a = getString(ua, "text");
    if (!solvable) {
      if (solvableSmartQuestions_debug) print("Not solvable: " + a);
      continue;
    }
    O ul = getOptDyn(getOptDyn(ua, "userLine"), "value");
    if (ul == null) ul = getOptDyn(getOptDyn(ua, "question"), "value");
    if (ul == null) {
      if (solvableSmartQuestions_debug) print("No question? " + a);
      continue;
    }
    S q = getString(ul, "text");
    map.put(q, a);
  }
  ret map;
}