a-do aaaa aaab aaad aaal aaar aaba aabb aabd aabl aabt aada aadt aala aald aall aalo aaoo aara aard aaro aart aata aatt abaa abab abad abal abar abat abb- abba abbb abbo abbr abbt abda abdo abla ablo aboa abob abod abol aboo abor abot abra abro abta adaa adab adad adal adao adar adat adba adda addd addl addo addr adob adod adoo ador adot adra adro adta alaa alad alal alao alar alat alb- alba albo ald- alda aldl aldo all- alla alll allo allr aloa alod alol aloo alor alot alro alta alto aoba aola aora aorb aort aotd arab arad aral arar arat arba arda ardl ardo 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 atla atlo atob atod atol ator atot atra atro atta atto attr baaa baad baal baar baat baba babb babo babr bada badb badd bado badr bala bald ball balo balt baol bar- bara barb bard baro barr bart bata bato batt bbad bbbb bbdd bbdo bblb bd-r blaa blab blad blat blbt bldr blob blod bloo blot boab boad boal boar boat boba bobb bobo boda bodb bodo bola bold boll bolo bolt boob bood bool boor boot bor- bora bord boro borr bort bota botb botd boto bott brab brad brao brat brda brdo brdt broa brob brod brol broo bror brot brrr btaa btdt btla btob btor btrt bttb d-bo daab daad daal daar daba dabb dabo dabt dada dado dala dall dalo dalt dara darb dard darl daro darr dart data dato datr datt dbar dbtt dddd ddot dlab dlbd doab doal doar doat doba dobb dobl dod- doda dodd dodo dola dold doll dolo dolt doob dood dool door doot dora dord doro dorr dort dota dotd doto dott draa drab drad drar drat drba drda drob drod drol drot drra dtaa dtla dtor dtot dtrl laaa laad laal laar laat laba labo labr lada ladd lado lala lald lall lalo lara larb lard larr lart lata latd lato latt lbar lblr lbrt llao llat lldb llll lloa llod lloo load loar loat lob- loba lobb lobo loda lola lold loll lolo loob lood lool loor loot lora lord loro lota lotd lotl loto lotr lott lral lrat lrba lrdd lrrr lrta ltbl ltra lttr oall oara obad obal obba obbo obdt obla obol obor obot obra obro obtd odal odbo odda oddd odla odoo odor odot odra odrl olar olat olba olbo oldb olla ollo olor olot olta ooaa ooba ooda oola oold oolo oooo oora oord oort ootb orab orad oral orao orar orat orba orbb orbo orda ordo orla orlo oro- oror orot orra orro orta orto otar otbd oto- otoo otor otra otro otta otto raab raad raat raba rabb rabl rabo rada radd radl rado radr radt rala ralb rall ralo ralt raob raol rara rarb raro rata rato ratt rbbb rbbr rlab rldt roab road roar roat rob- roba robb robo robt roda rodd rodo rola rold roll rolo rolt roob rood rool roor root rora roro rort rota rotl roto rotr rott rrad rrat rrrr rtdt rtlt taa- taal taar taat taba tabb tabl tabo tada tado tala tall talo taoa taor tara tarb tard taro tarr tart tata tatb tato tatr tatt tbar tbrb tbta tdal tddb tdor tdra tldr toab toad toal toat toba tobo tobt toda todd todo todt tol- tola told toll tolo tolt tooa tood tool toor toot tora tord toro torr tort tota totd toto totr tott traa trab trad tral trao trat troa trod troo trot trra trtr ttab ttbb tttt