a-do aaaa aaab aaad aaaf aaal aaar aaba aabb aabd aabl aada aafa aafb aafd aaff aafl aala aald aall aalo aaoo aara aard aaro abaa abab abad abaf abal abar abb- abba abbb abbo abbr abda abdo abff abla ablo aboa abob abod abof abol aboo abor abra abro adaa adab adad adal adao adar adba adda addd addl addo addr adfa adfl adob adod adoo ador adra adro afaa afad afao afar afdb afdl affa affo afla afoa afol afoo afor afr- afra afro alaa alad alal alao alar alb- alba albo ald- alda aldl aldo alfa all- alla alll allo allr aloa alod alof alol aloo alor alro aoba aola aora aorb arab arad araf aral arar arba arda ardf ardl ardo arfa arfb arff arla arlo aroa arob arod aroo aror arr- arra arro arrr baaa baad baaf baal baar baba babb babo babr bada badb badd bado badr baff bafo bala bald balf ball balo baol bar- bara barb bard barf baro barr bbad bbbb bbdd bbdo bblb bd-r bffl blaa blab blad bldr blob blod bloo boab boad boal boar boba bobb bobo boda bodb bodo bofa bofd boff bola bold boll bolo boob bood boof bool boor bor- bora bord borf boro borr brab brad braf brao brda brdo broa brob brod brol broo bror brrr d-bo daab daad daal daar daba dabb dabo dada dado dafa daff dafo dala dalf dall dalo dara darb dard darf darl daro darr dbar dbfo dddd dfaf dffa dfrf dlab dlbd doab doal doar doba dobb dobl dod- doda dodd dodo doff dola dold dolf doll dolo doob dood doof dool door dora dord dorf doro dorr draa drab drad draf drar drba drda drob drod drof drol drra faaa faad faba fabd fabo fada fadd fado fafa faff fafo fala fald fall falo fara farb fard farl faro farr fbar fbla fdlr fdoa ffar ffff ffrr flab flad flao fldr flob flod floo flor foad foaf foal foar foba foda fofo fola fold foll folo folr food foof fool for- fora forb ford forl foro forr frab frad frla frob frol laaa laad laal laar laba labo labr lada ladd lado lafb laff lala lald lall lalo lara larb lard larf larr lbar lblr lfrd llao lldb llll lloa llod lloo load loaf loar lob- loba lobb lobo loda lofa loff lola lold loll lolo loob lood loof lool loor lora lord loro lral lrba lrdd lrrr oafo oall oara obad obal obba obbo obla obol obor obra obro odal odbo odda oddd odla odoo odor odra odrl ofdr off- offa offo offr ofla ofor ofra olaf olar olba olbo oldb olfa olla ollo olof olor ooaa ooba ooda ooff oola oold oolo oooo oora oord orab orad oral orao orar orba orbb orbo orda ordo orff orla orlo oro- orof oror orra orro raab raad raaf raba rabb rabl rabo rada radd radl rado radr rafa raff rala ralb ralf rall ralo raob raol rara rarb rarf raro rbaf rbbb rbbr rdfa rffl rlab roab road roaf roar rob- roba robb robo roda rodd rodo roff rofl rofo rola rold rolf roll rolo roob rood roof rool roor rora roro rrad rrrr