a-ak a-ha a-ok aaaa aaab aaaf aaah aaar aaba aabb aabh aafa aafb aaff aaha aahk aaka aaoo aara aaro abaa abab abaf abak abar abb- abba abbb abbo abbr abff abha abho abhr aboa abob abof aboh abok aboo abor abra abro afaa afak afao afar affa affo afka afkr afoa afoo afor afr- afra afro ahab ahah ahar ahfa ahha ahoa ahok ahor ahra ahrr akaa akah akao akar akha akka akko akok akr- akra aoah aoba aora aorb arab araf arah arak arar arba arbh arfa arfb arff arh- arka arkh arko aroa arob aroo aror arr- arra arrh arrk arro arrr baaa baaf baah baak baar baba babb babo babr baff bafo baha baho bahr bak- baka bakh bako bakr baoh bar- bara barb barf barh bark baro barr bbbb bhao bhar bhff bhor bhra boab boak boar boba bobb bobo bofa boff bofh boha boho bohr boka boko boob boof booh book boor bor- bora borf borh bork boro borr brab braf brah brak brao brka brkb broa brob broh brok broo bror brrr f--k faaa faah faba fabo fafa faff fafo faha fahr fakh fako fara farb fark faro farr fbar ffar ffff ffrr fkab foaf foak foar foba fofo fohr foof fook for- fora forb fork foro forr frab frak frob froh haab haaf haak haar haba habo hafb haff haha haho haka hakk hako haor hara harf harh hark haro harr hbar hfba hhaa hhhh hhof hkfa hoar hoba hobo hoff hoha hoho hoka hoko hoof hook hoor hora hork horo horr hrob kaaa kaab kaaf kaak kaar kaba kabb kabf kabo kabr kafa kaff kafr kaha kaho kahr kaka kakh kakk kako kaoa kaok kaor kara karb karf kark karo karr kbaa kbab kbak kbar kbba kbbb kbbf kbbk kbbo kbbr kbfb kbff kbfk kbfo kbfr kbhb kbhh kbhr kbkb kbkf kbkk kbko kbkr kboa kbob kbok kboo kbra kbrb kbrf kbrh kbrk kbro kfab kfar kfbk kffa kffb kfff kffk kfka kfkb kfok kfoo kfor kfra kfrh kfro kfrr khab khaf khak khao khar khbr khfr khhk khho khka khkk khkr khoa khob khok khor khra khrk khro khrr kkaa kkar kkba kkbb kkbo kkbr kkfr kkha kkhb kkhh kkhk kkhr kkkk kkoa kkob kkoh kkoo kkor kkrb kkrf kkrh kkrk kkro kkrr koab koak koar koba kobb kobk kobo kobr kofa koff kofh kofk kofo koha kohh koho kohr koka kokb kokf kokh kokk koko kokr koob kook kooo koor kora korb korf kork koro korr krab krah krak krar krba krbb krbk krbr krff krfo krka krkh krkk krko krkr kroa krob krof kroh krok kroo kror krrb krrf krrk krro krrr oafo oara obak obba obbo obkb obok obor obra obrh obro ofah off- offa offh offo offr ofor ofra ohba ohho ohob ohoh ohok ohra okak okha okka okko okok okor okra okro ooaa ooak ooba ooff ooha ooho oooh oooo oora orab orah orak orao orar orba orbb orbo orff orka orko oro- orof orok oror orra orro raab raaf raak raba rabb rabk rabo rafa raff raha rahr raka rakk raob raoh raok rara rarb rarf rark raro rbaf rbbb rbbr rboh rhoa rhob rhoh rkkf roab roaf roak roar rob- roba robb robo roff rofo roha rohr roka rokh rokk roko rokr roob roof rook roor rora rork roro rrah rrrr