a-ak a-do a-ok aaaa aaab aaad aaar aaas aaav aaba aabb aabd aada aads aaka aaoo aara aard aaro aars aasa aasd aass aava abaa abab abad abak abar abas abb- abba abbb abbo abbr abbs abda abdo aboa abob abod abok aboo abor abos abov abra abro abrs abs- absa absd abss abva abvd adaa adab adad adak adao adar adas adba adda addd addo addr adds adob adod adok adoo ador ados adra adro adrs adsa adso adsr adss advb advs akaa akao akar akas akka akko akok akos akr- akra aksa aoba aoks aora aorb aors aosd aoss arab arad arak arar aras arba arbs arda ardo ards arka arko arks aroa arob arod aroo aror aros arr- arra arrk arro arrr arrs ars- arsa arsd arsk arso arva arvo asaa asab asad asak asao asar asas asba asbo asda asdo asds aska asko askr asks asob asod asok asor asos asra asro asrs assa assd assk asso assr asss asva asvd asvs avab avao avar avas avda avor avos avra avro avva avvo baaa baad baak baar baas baba babb babo babr babs bada badb badd bado badr bads bak- baka bako bakr baks baos bar- bara barb bard bark baro barr bars basa bask baso bass bava bbad bbas bbbb bbbs bbdd bbdo bd-r bdav bdos bdsd boab boad boak boar boas boba bobb bobo bobs boda bodb bodo bods boka boko boks boob bood book boor boos bor- bora bord bork boro borr bors bosa bosk boso boss bova bovo brab brad brak brao bras brav brda brdo brds brka brkb broa brob brod brok broo bror bros brrr brrs brsb brsr bsaa bsas bsbd bsod bsos bsra bsrd bssd bvds d-bo daab daad daar daas daba dabb dabo dabs dada dado dads daka dako daks daos dara darb dard dark daro darr dars dasa dasb dasd dask dass dava dbar dbas dbos dbrs dbsa dbss dddd ddss dkba doab doak doar doas doba dobb dobs dod- doda dodd dodo dods doka doko doob dood dook door doos dora dord dork doro dorr dors dosa dosk doso doss draa drab drad drak drar dras drba drda drob drod drra drrs drsa dsba dsda dsdr dsoa dsos dsrr dssa dsvd dvar dvas dvbs dvda dvdr dvds dvoa dvor dvra dvrs dvsr k-os kaaa kaab kaak kaar kaas kaba kabb kabd kabo kabr kad- kada kadd kado kadr kads kadv kaka kakk kako kaks kaoa kaok kaor kaos kara karb kard kark karo karr kars karv kas- kasa kasb kask kaso kasr kass kava kavb kavo kavs kavv kbaa kbab kbad kbak kbar kbas kbba kbbb kbbd kbbk kbbo kbbr kbbs kbdb kbdo kbdr kbds kbdv kbkb kbkk kbko kbkr kbkv kboa kbob kbod kbok kboo kbos kbov kbra kbrb kbrd kbrk kbro kbrv kbsa kbsb kbsk kbso kbsr kbss kbsv kbva kbvb kbvo kbvr kdaa kdab kdad kdak kdao kdar kdav kdbb kdbr kdbs kdbv kddb kddd kddk kddr kdka kdkb kdkd kdkk kdko kdkr kdok kdov kdrb kdro kdrs kdrv kdsd kdsk kdsr kdss kdva kdvb kdvr kdvs kdvv kkaa kkar kkba kkbb kkbd kkbo kkbr kkbs kkda kkdd kkdo kkdv kkkk kkoa kkob kkoo kkor kkov kkrb kkrk kkro kkrr kkrs kkrv kksa kksd kksr kkss kkvr kkvv koab koak koar koas koba kobb kobk kobo kobr kobs koda kodk kodo kods kodv koka kokb kokk koko kokr koks koob kook kooo koor koos koov kora korb kord kork koro korr kors korv kos- kosa kosb kosd koso kosr koss kova kovk kovo kovr krab krad krak krar kras krav krba krbb krbd krbk krbr krda krdd krdo krdr krds krka krkd krkk krko krkr krks krkv kroa krob krod krok kroo kror kros krov krrb krrk krro krrr krrs krsa krsd krsk krsr krss krsv krva krvb krvk krvo krvr krvs krvv ksab ksak ksar ksas ksav ksba ksbr ksbs ksbv ksdk ksdr ksds kska kskb kskd kskk ksko kskr ksks ksob ksok ksoo ksor ksos ksra ksrb ksro ksrr ksrs ksrv kssa ksso kssr ksss ksva ksvr kvab kvak kvar kvas kvbr kvda kvoa kvob kvod kvok kvoo kvor kvov kvra kvro kvrr kvrv kvsa kvso kvsr kvss kvsv kvvr kvvs kvvv oaks oara oars oass oavs obad obak obas obba obbo obkb obok obor obos obra obro obsd obsr obss obvs odas odbo odda oddd odds odoo odor odos odra odso odva okak okas okka okko okok okor okra okro oksa okso ooaa ooak ooba ooda oooo ooos oora oord oosa orab orad orak orao orar oras orav orba orbb orbo orbs orda ordo ords orka orko oro- orok oror oros orra orro orrs orsa orsk orso orvr orvs osak osar osas osba osdv osoo osor osos osov osrd osro ossa ossb ossd osso ovar ovda ovo- ovod ovoo ovra raab raad raak raas raba rabb rabk rabo rabs rada radd rado radr rads raka rakk raob raok raos rara rarb rark raro rars rasa rasd rask raso rass rava rbbb rbbr rbbs rbds rbsd rbss rdas rdos rdso rdvs rkos rkss rksv roab road roak roar roas rob- roba robb robo robs roda rodd rodo rods roka rokk roko rokr roks roob rood rook roor roos rora rork roro rosa roso ross rova rovo rovs rrad rras rrrr rsaa rsdd rsds rsos rssa s-os saab saad saak saar saas saba sabb sabo sabr sabs sada sadb sadd sado sadr sads saka sakb sakk sako saks saor saos sara sard sark saro sarr sars sarv sasa sasd sask saso sass sava savo savs sbaa sbar sbas sbbs sbds sbor sbrk sbsa sbsd sdak sdba sdds sdrs sdss skab skad skar skor skov skra sksd skss soad soak soar soas soba sobo sobr sobs soda sodd sodo sods soka sokk soko sood sook soor soos sora sorb sord soro sorr sors sosa soso soss sosv sova sovo sovs sras sros srsd ssaa ssab ssao ssas ssbr ssdd ssra ssrs sssa sssb ssss svar svdk svdo svod svor vaad vaar vaas vabs