a-do aaaa aaab aaad aaaf aaal aaar aaba aabb aabd aabl aabt aada aadt aafa aafb aafd aaff aafl aala aald aall aalo aaoo aara aard aaro aart aata aatf aatt abaa abab abad abaf abal abar abat abb- abba abbb abbo abbr abbt abda abdo abff abla ablo aboa abob abod abof abol aboo abor abot abra abro abta adaa adab adad adal adao adar adat adba adda addd addl addo addr adfa adfl adob adod adoo ador adot adra adro adta afaa afad afao afar afat afdb afdl affa affo afft afla afoa afol afoo afor afr- afra afro afta alaa alad alal alao alar alat alb- alba albo ald- alda aldl aldo alfa all- alla alll allo allr aloa alod alof alol aloo alor alot alro alta alto aoba aola aora aorb aort aotd aotf arab arad araf aral arar arat arba arda ardf ardl ardo arfa arfb arff arft arla arlo aroa arob arod aroo aror arr- arra arro arrr arrt arta arto artr at-l at-t ataa atab atad atal atar atat atdt atfb atla atlo atob atod atof atol ator atot atra atro atta atto attr baaa baad baaf baal baar baat baba babb babo babr bada badb badd bado badr baff bafo baft bala bald balf ball balo balt baol bar- bara barb bard barf baro barr bart bata batf bato batt bbad bbbb bbdd bbdo bblb bd-r bffl bfta bftt blaa blab blad blat blbt bldr blob blod bloo blot boab boad boal boar boat boba bobb bobo boda bodb bodo bofa bofd boff bola bold boll bolo bolt boob bood boof bool boor boot bor- bora bord borf boro borr bort bota botb botd boto bott brab brad braf brao brat brda brdo brdt broa brob brod brol broo bror brot brrr btaa btaf btdt btla btob btor btrt bttb d-bo daab daad daal daar daba dabb dabo dabt dada dado dafa daff dafo daft dala dalf dall dalo dalt dara darb dard darf darl daro darr dart data dato datr datt dbar dbfo dbtt dddd ddot dfaf dfdt dffa dfrf dftr dlab dlbd doab doal doar doat doba dobb dobl dod- doda dodd dodo doff dola dold dolf doll dolo dolt doob dood doof dool door doot dora dord dorf doro dorr dort dota dotd doto dott draa drab drad draf drar drat drba drda drob drod drof drol drot drra dtaa dtla dtor dtot dtrl faaa faad faba fabd fabo fada fadd fado fafa faff fafo fala fald fall falo falt fara farb fard farl faro farr fart fata fatf fato fatt fbar fbla fdlr fdoa fdot fdtl ffar ffff ffrr fftf flab flad flao flat fldr flob flod floo flor flot 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 frab frad frat frla frob frol frot frta ft-l ftlb laaa laad laal laar laat laba labo labr lada ladd lado lafb laff laft lala lald lall lalo lara larb lard larf larr lart lata latd lato latt lbar lblr lbrt lfat lfrd llao llat lldb llll lloa llod lloo 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 lral lrat lrba lrdd lrrr lrta ltbf ltbl ltra lttr oafo oall oara obad obal obba obbo obdt obla obol obor obot obra obro obtd odal odbo odda oddd odla odoo odor odot odra odrl ofdr off- offa offo offr ofla ofor ofra ofta olaf olar olat olba olbo oldb olfa olla ollo olof olor olot olta ooaa ooba ooda ooff oola oold oolo oooo oora oord oort ootb orab orad oral orao orar orat orba orbb orbo orda ordo orff orla orlo oro- orof oror orot orra orro orta orto otar otbd oto- otof otoo otor otra otro otta otto raab raad raaf raat raba rabb rabl rabo rada radd radl rado radr radt rafa raff raft rala ralb ralf rall ralo ralt raob raol rara rarb rarf raro rata ratf rato ratt rbaf rbbb rbbr rdfa rffl rlab rldt roab road roaf roar roat rob- roba robb robo robt roda rodd rodo roff rofl rofo rola rold rolf roll rolo rolt roob rood roof rool roor root rora roro rort rota rotl roto rotr rott rrad rrat rrrr rtbf rtdt rtfb rtlt taa- taaf taal taar taat taba tabb tabl tabo tada tado tafa taff tafo taft tala tall talo taoa taor tara tarb tard tarf taro tarr tart tata tatb tato tatr tatt tbaf tbar tbrb tbta tdal tddb tdff tdor tdra tfal tfot tldr toab toad toal toat toba tobo tobt toda todd todo todt tofa toff tofo toft tol- tola told toll tolo tolt tooa tood toof tool toor toot tora tord torf toro torr tort tota totd toto totr tott traa trab trad traf tral trao trat trfd trfr troa trod troo trot trra trtr ttab ttbb ttfa ttff tttt