a-do a-fu aaaa aaab aaad aaaf aaal aaar aaba aabb aabd aabl aabt aada aadt aadu aafa aafb aafd aaff aafl aala aald aall aalo aalu aaoo aara aard aaro aart aaru aata aatf aatt abaa abab abad abaf abal abar abat abau abb- abba abbb abbo abbr abbt abda abdo abdu abff abla ablo aboa abob abod abof abol aboo abor abot abou abra abro abta abtu abua abud abuf abul abut adaa adab adad adal adao adar adat adba adda addd addl addo addr addu adfa adfl adob adod adoo ador adot adra adro adta adua adub adur afaa afad afao afar afat afdb afdl affa affo afft afla afoa afol afoo afor afr- afra afro afru afta afua afud alaa alad alal alao alar alat alau alb- alba albo albu ald- alda aldl aldo alfa all- alla alll allo allr allu aloa alod alof alol aloo alor alot alou alro alta alto alua aluf alur alut aoba aola aora aorb aort aotd aotf aouf aoul aout arab arad araf aral arar arat arau arba arda ardf ardl ardo ardu arfa arfb arff arft arfu arla arlo aroa arob arod aroo aror arr- arra arro arrr arrt arru arta arto artr arua arub arud arul arut at-l at-t ataa atab atad atal atar atat atdt atfb atla atlo atob atod atof atol ator atot atra atro atru atta atto attr attu atua atub atul atur auaa audo aul- aula auld aulf aull aulo ault aulu auol aur- aura aurd auro aut- auto baaa baad baaf baal baar baat baba babb babo babr babu bada badb badd bado badr badu baff bafo baft bala bald balf ball balo balt balu baol bar- bara barb bard barf baro barr bart baru bata batf bato batt batu bau- baud bauf baul baur bbad bbau bbbb bbdd bbdo bblb bd-r bduf bffl bfta bftt blaa blab blad blat blau blbt bldr blob blod bloo blot blou blub blud bluf blur blut boab boad boal boar boat boba bobb bobo bobu boda bodb bodo bodu bofa bofd boff bofu bola bold boll bolo bolt bolu boob bood boof bool boor boot bor- bora bord borf boro borr bort boru bota botb botd boto bott boua boud bouf boul bour bout brab brad braf brao brat brau brda brdo brdt brfu broa brob brod brol broo bror brot brou brrr brud brut btaa btaf btdt btla btob btor btrt bttb buad bual buar buat buba bubb bubo bubu buda budb budd budl budo budu buff bufo bufr bula bulb buld bull bult bulu buol bur- bura burb burd burl buro burr burt buru but- buta buto butt d-bo daab daad daal daar daau daba dabb dabo dabt dabu dada dado dadu dafa daff dafo daft dala dalf dall dalo dalt dalu daou dara darb dard darf darl daro darr dart daru data dato datr datt datu daub daud daur daut dbar dbfo dbtt dddd ddot ddub dfaf dfdt dffa dfrf dftr dlab dlbd doab doal doar doat doba dobb dobl dobu dod- doda dodd dodo doff dola dold dolf doll dolo dolt dolu doob dood doof dool door doot dora dord dorf doro dorr dort doru dota dotd doto dott doub doud douf doul dour dout draa drab drad draf drar drat drau drba drda drob drod drof drol drot drou drra drua drub drut druu dtaa dtla dtor dtot dtrl duaa duab duad dual duar duat dub- duba dubb dubu duda dudd dudo dudu duff dufu dula dull dulo dult dulu duo- dura duro durt duru duta duul duur duut faaa faad faba fabd fabo fabu fada fadd fado fafa faff fafo fala fald fall falo falt falu fara farb fard farl faro farr fart faru fata fatf fato fatt faud faul faur faut fbar fbla fdlr fdoa fdot fdtl ffar ffff ffrr fftf flab flad flao flat fldr flob flod floo flor flot flou flub flud fluf fluo flur foad foaf foal foar foba fobt foda fofo fola fold foll folo folr folt food foof fool foot for- fora forb ford forl foro forr fort fota foto fott foua foud foul four fout frab frad frat frau frla frob frol frot frou frta frub ft-l ftlb ftub fuad fuar fuat fubb fubu fuda fudd fuff fufu fula full fulu fuor fur- fura furl furo furr furt futa futo futu laaa laad laal laar laat laba labo labr labu lada ladd lado ladu lafb laff laft lala lald lall lalo lalu laou lara larb lard larf larr lart laru lata latd lato latt latu laub laud lauf laul laur laut lbar lblr lbrt lfat lfrd llao llat lldb llll lloa llod lloo llud load loaf loar loat lob- loba lobb lobo loda lofa loff loft lola lold loll lolo loob lood loof lool loor loot lora lord loro lota lotd lotl loto lotr lott loud loul lour lout louu lral lrat lrba lrdd lrrr lrta ltbf ltbl ltra lttr luau luba luda ludd ludo luff luft lufu lula lull lulu lura lurd lurt luta luua oaau oafo oall oara obad obal obba obbo obdt obla oblu obol obor obot obra obro obtd odal odbo odda oddd odla odoo odor odot odou odra odrl odtu odur ofdr off- offa offo offr offu ofla ofor ofra ofta olaf olar olat olba olbo oldb olfa olla ollo olof olor olot olta oltu olur ooaa ooba ooda ooff oola oold oolo oooo oora oord oort ootb orab orad oral orao orar orat orba orbb orbo orbu orda ordo ordu orff orfu orla orlo orlu oro- orof oror orot orra orro orta orto orub otar otbd oto- otof otoo otor otra otro otta otto ottu otur ouad ouat ouff oula ould oulu our- oura ouro ourt out- outa outb outo ouu- raab raad raaf raat raba rabb rabl rabo rabu rada radd radl rado radr radt radu rafa raff raft rala ralb ralf rall ralo ralt raob raol rara rarb rarf raro rata ratf rato ratt ratu raua