please include function ai_invalidatedWebs.

static void ai_tripleIndexToInvalidatedWebs() {
  new Matches m;
  for (TripleWeb w : ai_triples("$X", "is", "invalid"))
    if (match("Web *", w.a, m) && isGlobalID($1))
      ai_invalidatedWebs_cache->put(asGlobalID($1), w.globalID());
}