a-ak a-ok aaaa aaab aaaf aaal aaba aabb aabl aafa aafb aaff aafl aaka aala aall aalo aaoo abaa abab abaf abak abal abb- abba abbb abbo abff abla ablo aboa abob abof abok abol aboo afaa afak afao affa affo afka afla afoa afol afoo akaa akal akao akka akko aklo akok alaa alak alal alao alb- alba albo alfa alk- alka alkb alko all- alla alll allo aloa alof alok alol aloo aoba aola baaa baaf baak baal baba babb babo baff bafo bak- baka bakl bako bala balf balk ball balo baol bbbb bblb bffl blaa blab blak blkb blob blok bloo boab boak boal boba bobb bobo bofa boff boka boko bola bolk boll bolo boob boof book bool f--k faaa faba fabo fafa faff fafo fako fala falk fall falo fbla ffff fkab flab flak flao flob flok floo foaf foak foal foba fofo fola folk foll folo foof fook fool k-lo kaaa kaab kaaf kaak kaal kaba kabb kabf kabo kafa kaff kaka kakk kako kala kalb kalf kalk kall kalo kaoa kaok kaol kbaa kbab kbak kbal kbba kbbb kbbf kbbk kbbl kbbo kbfb kbff kbfk kbfl kbfo kbkb kbkf kbkk kbkl kbko kbla kblb kblf kbll kblo kboa kbob kbok kboo kfab kfal kfbk kffa kffb kfff kffk kfka kfkb kfla kflb kflf kfll kflo kfok kfoo kkaa kkal kkba kkbb kkbl kkbo kkkk kklb kklf kkll kklo kkoa kkob kkol kkoo klaa klab klaf klak klal klbb klbf klbl klfa klff klka klkk klkl klko klla kllb kllk kloa klob klok klol kloo koab koak koal koba kobb kobk kobo kofa koff kofk kofo koka kokb kokf kokk koko kola kolb kolf kolk koll kolo koob kook kool kooo laaa laak laal laba labo lafb laff laka lala lall lalo lkab lkal llao llll lloa lloo loaf lob- loba lobb lobo lofa loff loka lokk loko lola loll lolo loob loof look lool oafo oall obak obal obba obbo obkb obla obok obol off- offa offo ofla okak okka okko okla oklo okok okol olaf olba olbo olfa olka olla ollo olof ooaa ooak ooba ooff oola oolo oooo