static T3<S> ai_tripelize_howLongEtc(S s, L<S> tok) {
  printStruct(tok);
  if (eqicGet(tok, 1, "how")) {
    // e.g. how long is the string "bla"?
    int verb = indexOfFirstVerb(tok);
    ret t3(
      dropTrailingPunctuation(trimJoinSubList(tok, verb+1)),
      tok.get(verb),
      trimJoinSubList(tok, 0, verb) + "?");
  }
  null;
}