static Map<S, AIConcept> trueStatements_cached_map;
static new O trueStatements_cached_lock;

static Map<S, AIConcept> trueStatements_cached() {
  synchronized(trueStatements_cached_lock) {
    if (trueStatements_cached_map == null)
      trueStatements_cached_map = collect(loadTruth(), "text");
    ret trueStatements_cached_map;
  }
}

static void trueStatements_clearCache() {
  synchronized(trueStatements_cached_lock) {
    trueStatements_cached_map = null;
  }
}