a-do aaaa aaab aaad aaar aaas aaba aabb aabd aabt aada aads aadt aaoo aara aard aaro aars aart aasa aasd aass aast aata aatt abaa abab abad abar abas abat abb- abba abbb abbo abbr abbs abbt abda abdo aboa abob abod aboo abor abos abot abra abro abrs abs- absa absd abss abta abts adaa adab adad adao adar adas adat adba adda addd addo addr adds adob adod adoo ador ados adot adra adro adrs adsa adso adsr adss adst adta adts aoba aora aorb aors aort aosd aoss aotd arab arad arar aras arat arba arbs arda ardo ards aroa arob arod aroo aror aros arr- arra arro arrr arrs arrt ars- arsa arsd arso arst arta arto artr arts asaa asab asad asao asar asas asat asba asbo asda asdo asds asob asod asor asos asot asra asro asrs assa assd asso assr asss asst asta astb asto astr asts at-t ataa atab atad atar atas atat atbs atdt atob atod ator atos atot atra atro atsb atst atta atto attr atts baaa baad baar baas baat baba babb babo babr babs bada badb badd bado badr bads baos bar- bara barb bard baro barr bars bart basa baso bass bast bata bato bats batt bbad bbas bbbb bbbs bbdd bbdo bd-r bdos bdsd boab boad boar boas boat boba bobb bobo bobs boda bodb bodo bods boob bood boor boos boot bor- bora bord boro borr bors bort bosa boso boss bost bota botb botd boto bots bott brab brad brao bras brat brda brdo brds brdt broa brob brod broo bror bros brot brrr brrs brsb brsr brst bsaa bsas bsat bsbd bsod bsos bsra bsrd bssd bsts btaa btdt btob btor btrt btss bttb d-bo daab daad daar daas daba dabb dabo dabs dabt dada dado dads daos dara darb dard daro darr dars dart dasa dasb dasd dass dast data dato datr dats datt dbar dbas dbos dbrs dbsa dbss dbtt dddd ddot ddss ddts doab doar doas doat doba dobb dobs dod- doda dodd dodo dods doob dood door doos doot dora dord doro dorr dors dort dosa doso doss dost dota dotd doto dots dott draa drab drad drar dras drat drba drda drob drod drot drra drrs drsa dsba dsda dsdr dsoa dsos dsrr dssa dsst dsto dsts dtaa dtor dtot dtss oara oars oass oast oats obad obas obba obbo obdt obor obos obot obra obro obsd obsr obss obst obtd obts odas odbo odda oddd odds odoo odor odos odot odra odso odts ooaa ooba ooda oooo ooos oora oord oort oosa oost ootb oots orab orad orao orar oras orat orba orbb orbo orbs orda ordo ords oro- oror oros orot orra orro orrs orsa orso orta orto orts osar osas osat osba osoo osor osos osrd osro ossa ossb ossd osso osta ostr osts otar otas otbd otbs oto- otoo otor otos otra otro otrs otsa otso otta otto otts raab raad raas raat raba rabb rabo rabs rada radd rado radr rads radt raob raos rara rarb raro rars rasa rasd raso rass rast rata rato rats ratt rbbb rbbr rbbs rbds rbsd rbss rbst rdas rdos rdso roab road roar roas roat rob- roba robb robo robs robt roda rodd rodo rods roob rood roor roos root rora roro rort rosa roso ross rost rota roto rotr rots rott rrad rras rrat rrrr rsaa rsdd rsds rsos rssa rsts rtas rtdt rtss rtts s-os saab saad saar saas saat saba sabb sabo sabr sabs sada sadb sadd sado sadr sads sadt saor saos sara sard saro sarr sars sart sasa sasd saso sass sast sata satb satd sato satr sats satt sbaa sbar sbas sbbs sbds sbor sbot sbsa sbsd sbst sdba sdds sdot sdrs sdss soad soar soas soat soba sobo sobr sobs sobt soda sodd sodo sods sood soor soos soot sora sorb sord soro sorr sors sort sosa soso soss sost sota soto sots sras sros srsd srta srtr ssaa ssab ssao ssas ssat ssbr ssdd ssot ssra ssrs sssa sssb ssss ssta sstb sstd ssts stab stad star stas stat stbd stbs stds stoa stob stod stoo stor stos stot stra strd stro strs stss sttd sttr taa- taar taas taat taba tabb tabo tabs tada tado tads taoa taor taos tara tarb tard taro tarr tars tart tasa tasb tasr tass tast tata tatb tato tatr tats tatt tbar tbas tbbs tbrb tbst tbta tddb tdor tdra tdss toab toad toas toat toba tobo tobs tobt toda todd todo tods todt tooa tood toor toos toot tora tord toro torr tors tort tosa tosb toso toss tost tota totd toto totr tots tott traa trab trad trao tras trat troa trod troo tros trot trra trsd trst trtr tsaa tsao tsar tsat tsbd tsdb tsob tsos tssa tssr tsst tsts ttab ttbb ttss tttt