!7

p-exp {
  S input = "hey, bot, what time is it yo bot please?";

  final Set<S> set = mechSetCI("Appellations");
  
  pnl(repeatedInputModificationsIterator(input, func(S s) -> L<Iterator<S>> {
    ll(ai_dropLeadingPhrases(s), ai_dropTrailingPhrases(s))
  }));
}