-ana a-ak a-do a-ok aaaa aaab aaad aaan aaba aabb aabd aada aaka aana aand aaon aaoo abaa abab abad abak aban abb- abba abbb abbo abda abdo aboa abob abod abok abon aboo adaa adab adad adak adan adao adba adda addd addn addo adna adob adod adok adon adoo akaa akan akao akdn akka akko akna akok akon ana- anaa anab anad anak anan anao anba anbb anbo and- anda ando ank- anka anko anna annb anno ano- anoa anod anon aoba aonb aono baaa baad baak baan baba babb babo bada badb badd bado bak- baka bako bana band bank bann bano baon bbad bbbb bbdd bbdo bdna boab boad boak boan boba bobb bobo boda bodb bodo boka bokn boko bona bond bonk bonn bono boob bood book boon d-bo d-na daab daad daan daba dabb dabo dada dado daka dako dana dand dank dann dano daon dddd dkba dnaa dnab dnad dnan doab doak doan doba dobb dod- doda dodd dodo doka doko dona dond donk donn dono doob dood dook doon kaaa kaab kaak kaan kaba kabb kabd kabo kad- kada kadd kado kaka kakk kakn kako kana kanb kand kann kano kaoa kaok kaon kbaa kbab kbad kbak kbba kbbb kbbd kbbk kbbo kbdb kbdn kbdo kbkb kbkk kbko kbna kbnd kbnn kbno kboa kbob kbod kbok kbon kboo kdaa kdab kdad kdak kdao kdbb kdbn kddb kddd kddk kdka kdkb kdkd kdkk kdkn kdko kdna kdnd kdnk kdnn kdno kdok kkaa kkan kkba kkbb kkbd kkbn kkbo kkda kkdd kkdo kkkk kknb kknd kknn kkno kkoa kkob kkon kkoo knaa knab knan knba knbb knbn knda kndb kndd kndk kndn kndo knkk knnb knnd knnk knob knod knok knon koab koak koan koba kobb kobk kobn kobo koda kodk kodo koka kokb kokk kokn koko kona kond konk kono koob kook koon kooo naaa naab naad naan naba nabk nabo nada nadk naka nako nan- nana nanb nand nann nano nbaa nbad nbak nbbo ndaa ndak ndao nddb nddo ndna nkok nndb nnnn noaa noak noba nobo noda nodo noko non- nona nonn nono noo- noob nook noon nooo obad obak oban obba obbo obkb obok obon odbo odda oddd odnb odon odoo okak okan okka okko okna okno okok okon onab onan onda ondo onna onno onod onon ooaa ooak ooba ooda oona oooo