If the apple recognizer has seen A-P-P-L, it'll think to itself, "Hmm, I think an E is probably likely," and it'll send a signal down to all the E recognizers saying, "Be on the lookout for an E, I think one might be coming."
Jeśli struktura rozpoznająca widzi A-P-P-L, może odgadnąć literę E, i wysłać sygnał do struktur na dole, aby wypatrywały litery E.