-ana a-ak a-ok aaaa aaab aaan aaba aabb aaka aana aaon aaoo abaa abab abak aban abb- abba abbb abbo aboa abob abok abon aboo abza akaa akan akao akka akko akna akok akon ana- anaa anab anak anan anao anaz anba anbb anbo ank- anka anko anna annb anno ano- anoa anon anza aoba aonb aono aza- azab azan azaz azna azo- azon azoo azza azzo baaa baak baan baaz baba babb babo bak- baka bako bana bank bann bano banz baon baza bazo bbbb boab boak boan boaz boba bobb bobo boka bokn boko bona bonk bonn bono boob book boon booz boza bozo bzzz kaaa kaab kaak kaan kaba kabb kabo kabz kaka kakk kakn kako kana kanb kann kano kanz kaoa kaok kaon kaza kazn kazo kazz kbaa kbab kbak kbaz kbba kbbb kbbk kbbo kbbz kbkb kbkk kbko kbkz kbna kbnn kbno kboa kbob kbok kbon kboo kboz kbzn kbzo kbzz kkaa kkan kkba kkbb kkbn kkbo kkbz kkkk kknb kknn kkno kkoa kkob kkon kkoo kkoz kkzn kkzz knaa knab knan knaz knba knbb knbn knbz knkk knnb knnk knnz knob knok knon knoz knz knza knzz koab koak koan koaz koba kobb kobk kobn kobo koka kokb kokk kokn koko kokz kona konk kono konz koob kook koon kooo kooz koza kozb kozk kozn kozo kzan kzaz kzbb kzbk kzbz kzkz kzna kznb kznk kznn kzno kzon kzoo kzoz kzza kzzb kzzk kzzn kzzo kzzz naaa naab naan naba nabk nabo naka nako nan- nana nanb nann nano naza nazo nazz nbaa nbak nbbo nkok nnnn noaa noak noba nobo noko non- nona nonn nono noo- noob nook noon nooo obak oban obba obbo obkb obok obon okak okan okaz okka okko okna okno okok okon onab onan onna onno onon onoz onza onzo ooaa ooak ooba oona oooo ozan ozna ozon zaan zaba zabo zaka zakk zana zann zano zaza znak zoan zobo zon- zona zonk zoo- zook zoon zoza zozo zzzz