a-ak a-do a-ok aaaa aaab aaad aaaf aaal aaba aabb aabd aabl aada aafa aafb aafd aaff aafl aaka aala aald aall aalo aaoo abaa abab abad abaf abak abal abb- abba abbb abbo abda abdo abff abla ablo aboa abob abod abof abok abol aboo adaa adab adad adak adal adao adba adda addd addl addo adfa adfl adob adod adok adoo afaa afad afak afao afdb afdl affa affo afka afla afoa afol afoo akaa akal akao akka akko aklo akok alaa alad alak alal alao alb- alba albo ald- alda aldl aldo alfa alk- alka alkb alkd alko all- alla alll allo aloa alod alof alok alol aloo aoba aola baaa baad baaf baak baal baba babb babo bada badb badd bado baff bafo bak- baka bakl bako bala bald balf balk ball balo baol bbad bbbb bbdd bbdo bblb bffl blaa blab blad blak blkb blkd blob blod blok bloo boab boad boak boal boba bobb bobo boda bodb bodo bofa bofd boff boka boko bola bold bolk boll bolo boob bood boof book bool d-bo daab daad daal daba dabb dabo dada dado dafa daff dafo daka dako dala dalf dalk dall dalo dbfo dddd dfaf dffa dkba dlab dlbd doab doak doal doba dobb dobl dod- doda dodd dodo doff doka doko dola dold dolf dolk doll dolo doob dood doof dook dool f--k faaa faad faba fabd fabo fada fadd fado fafa faff fafo fako fala fald falk fall falo fbla fdoa ffff fkab flab flad flak flao flob flod flok floo foad foaf foak foal foba foda fofo fola fold folk foll folo food foof fook fool k-lo kaaa kaab kaaf kaak kaal kaba kabb kabd kabf kabo kad- kada kadd kadf kadl kado kafa kaff kaka kakk kako kala kalb kald kalf kalk kall kalo kaoa kaok kaol kbaa kbab kbad kbak kbal kbba kbbb kbbd kbbf kbbk kbbl kbbo kbdb kbdf kbdl kbdo kbfb kbff kbfk kbfl kbfo kbkb kbkf kbkk kbkl kbko kbla kblb kbld kblf kbll kblo kboa kbob kbod kbok kboo kdaa kdab kdad kdaf kdak kdal kdao kdbb kdbl kddb kddd kddf kddk kddl kdfo kdka kdkb kdkd kdkk kdko kdla kdlb kdld kdlf kdll kdlo kdok kfab kfal kfbk kfda kffa kffb kfff kffk kfka kfkb kfla kflb kfld kflf kfll kflo kfok kfoo kkaa kkal kkba kkbb kkbd kkbl kkbo kkda kkdd kkdl kkdo kkkk kklb kkld kklf kkll kklo kkoa kkob kkol kkoo klaa klab klad klaf klak klal klbb klbd klbf klbl kldd klfa klfd klff klka klkk klkl klko klla kllb kllk kloa klob klok klol kloo koab koak koal koba kobb kobk kobo koda kodk kodl kodo kofa koff kofk kofo koka kokb kokf kokk koko kola kolb kold kolf kolk koll kolo koob kook kool kooo laaa laad laak laal laba labo lada ladd lado lafb laff laka lala lald lall lalo lkab lkal llao lldb llll lloa llod lloo load loaf lob- loba lobb lobo loda lofa loff loka lokk loko lola lold loll lolo loob lood loof look lool oafo oall obad obak obal obba obbo obkb obla obok obol odal odbo odda oddd odla odoo off- offa offo ofla okak okka okko okla oklo okok okol olaf olba olbo oldb olfa olka olla ollo olof ooaa ooak ooba ooda ooff oola oold oolo oooo