a-do a-ha aaaa aaab aaad aaaf aaah aaar aaba aabb aabd aabh aada aafa aafb aafd aaff aaha aaoo aara aard aaro abaa abab abad abaf abar abb- abba abbb abbo abbr abda abdo abff abha abho abhr aboa abob abod abof aboh aboo abor abra abro adaa adab adad adah adao adar adba adda addd addo addr adfa adha adhd adho adob adod adoo ador adra adro afaa afad afao afar afdb affa affo afoa afoo afor afr- afra afro ahab ahad ahah ahar ahfa ahha ahoa ahod ahor ahra ahrr aoah aoba aodh aora aorb arab arad araf arah arar arba arbh arda ardf ardo arfa arfb arff arh- aroa arob arod aroo aror arr- arra arrh arro arrr baaa baad baaf baah baar baba babb babo babr bada badb badd badh bado badr baff bafo baha baho bahr baoh bar- bara barb bard barf barh baro barr bbad bbbb bbdd bbdo bd-r bddh bhao bhar bhff bhor bhra boab boad boar boba bobb bobo boda bodb bodh bodo bofa bofd boff bofh boha bohd boho bohr boob bood boof booh boor bor- bora bord borf borh boro borr brab brad braf brah brao brda brdo broa brob brod broh broo bror brrr d-bo daab daad daar daba dabb dabo dada dado dafa daff dafo daha dara darb dard darf daro darr dbar dbfo dddd dfaf dffa dfrf dhaa dhad dhao dhar dhod dhor doab doar doba dobb dod- doda dodd dodo doff doha dohr doob dood doof door dora dord dorf doro dorr draa drab drad draf drar drba drda drob drod drof droh drra faaa faad faah faba fabd fabo fada fadd fado fafa faff fafo faha fahd fahr fara farb fard faro farr fbar fdoa ffar ffff ffrr foad foaf foar foba foda fofo fohr food foof for- fora forb ford foro forr frab frad frob froh haab haad haaf haar haba habo hada hadf hadh hafb hafd haff haha haho haor hara hard harf harh haro harr hbar hdda hdod hdra hfba hhaa hhhh hhof hoad hoar hoba hobo hoda hodh hodr hoff hoha hoho hood hoof hoor hora hord horo horr hrad hrob hrod oafo oara obad obba obbo obor obra obrh obro odah odbo odda oddd odoh odoo odor odra ofah ofdr off- offa offh offo offr ofor ofra ohad ohba ohho ohob ohoh ohra ooaa ooba ooda ooff ooha ooho oooh oooo oora oord orab orad orah orao orar orba orbb orbo orda ordo orff oro- orof oror orra orro raab raad raaf raba rabb rabo rada radd radh rado radr rafa raff raha rahr raob raoh rara rarb rarf raro rbaf rbbb rbbr rboh rdfa rhoa rhob rhod rhoh roab road roaf roar rob- roba robb robo roda rodd rodo roff rofo roha rohr roob rood roof roor rora roro rrad rrah rrrr