static L<AIConcept> conceptsFromDump(S s) {
  L<L<S>> l = (L) safeUnstructure("[" + s + "]");
  new L<AIConcept> out;
  for (L<S> x : l) {
    AIConcept c = unlisted(AIConcept);
    S id = makeNewID(get(x, 0));
    cset(c, globalID := id, name := unnull(get(x, 1)), comment := unnull(get(x, 2)));
    out.add(c);
  }
  ret out;
}