aaaaba abaana ababda abacab abadan abakan abanca abanda abbana acanda ackack adanac addada akbaba akbank akkaba anaana anabaa anabad anacda anadan ananab ananda andada annaba annada annand baabaa baabda babana bacaba badbad badkan banaba banana bandak bandan bannan bbbbbb c-anca cabaan caback cabana cabban cadaba cadca cakcak canaa canaan canaba canada cancan candan cannan cccdna dababa dabaca dabaka dabdab dadaab dadada dadkan dadnab danaan danaba danand danann dandak dandan dankan k-band k-bank kaakan kaback kabaka kabana kabbad kadaba kadaka kadana kadbak kadkan kakana kakkad kakkak kana-a kanaan kanada kanaka kanana kanban kandab kank-a kankan kannad kannan n-back nacnac nadaan nadana nakada nakkna naknak nanaka nanana nanban nandan nannan ndanda