aaaaba abaana abacab abakan abanca abbana ackack acuna akbaba akbank akkaba akuaba akuaku anaana anabaa ananab ananku anbabu annaba anuna aucuba baabaa baakun babacu babana bacaba bacau banaba banana bannan baucau bbbbbb buanak buback bububu bucana buccan buckau buckna bukaua bunaba bunkka bunuba c-anca cabaan caback cabana cabban cabucu cabuna cakcak canaa canaan canaba cancan cannan canuck caucan cunaba k-bank kaakan kaback kabaka kabana kabuku kabuna kakana kakkak kana-a kanaan kanaka kanana kanban kanbun kank-a kankan kannan kanuck kanuka kanuku kaukau kaunan kubaan kubaba kubuna n-back nabuna nacnac nakkna naknak nanaka nanana nanban nannan nannau naukan nubuck nukkuu nukunu uacaba ucuncu ucuuba unbank unkana unnack