kora korb korc kore kork koro korr kors koru kos- kosa kosb kosc kose koso kosr koss kosu koua koub koue kour kous kouu krab krac krae krak krar kras krba krbb krbe krbk krbr krca krcb krcc krce krco krcs krcu krea kreb krec kree krek kreo kres kreu krka krkc krke krkk krko krkr krks krku kroa krob kroc kroe krok kroo kror kros krrb krrc krre krrk krro krrr krrs krsa krsc krse krsk krsr krss krsu krua kruc krue kruk krur ksab ksac ksak ksar ksas ksau ksba ksbc ksbr ksbs ksca kscb ksce ksck ksco kscr kscs kscu ksea ksec ksee ksek kseo kser kska kskb kske kskk ksko kskr ksks ksku ksob ksoc ksok ksoo ksor ksos ksou ksra ksrb ksro ksrr ksrs kssa ksse ksso kssr ksss kssu ksua ksub ksue ksuu kuac kuar kuau kuba kubb kubc kube kubo kubr kubs kubu kuca kucb kucc kuce kuco kucr kuek kues kueu kuka kuke kukk kuks kuku kuoa kuok kuoo kuos kura kurb kure kurk kuro kurr kurs kuru kusa kusb kusc kuso kusu kuub kuuk kuur kuuu o-eo oaau oaer oaes oake oaks oara oare oars oasc oase oass obak obas obba obbo obea obec ober obes obkb oboe obok obor obos obra obre obro obsr obss obus ocab ocac ocak ocas ocbc occa occc oce ocee ocke ocks ocos ocra ocre ocro ocrr ocrs ocsa ocur oec- oeca oecc oeec oera oere oers oese okak okas okcu oker okes okka okko okok okor okra okre okro oksa okso okur okus ooaa ooak ooba oobe oocr ooer ooes ooku oooo ooos oora oore oosa oose oous orab orac orae orak orao orar oras orba orbb orbe orbo orbs orbu orca orce orco orcs ore- orea oreb orec orek oreo orer ores orka orke orko oro- oroe orok oror oros orra orro orrs orsa orse orsk orso orsu orub orus osak osar osas osba osbe osca oscc osce osco osea osec osee osek oser oses osku osoo osor osos osro ossa ossb osse osso ossu ouac oubs oucc ouea ouer our- oura oure ouro ours ousa ouse ouu- raab raak raas raba rabb rabe rabk rabo rabs rabu rac- raca racc race rack raco racs racu raec raer raes raka rake rakk raku raob raoc raok raos rara rarb rare rark raro rars rasa rasc rase rask raso rass rasu raua raub rauc raue rauk raus rbbb rbbr rbbs rbss rcac rcas rcbc rcbo rccb rccc rccs rcos rcsa rcsc rcss rea- reac reae reak reao rear reas reau reba rebb rebe rebk rebo rebs rebu reca recc rece reck recr recs recu reeb reek rees reka reke reko reks reos reou rera rere rero rers reru resa rese reso ress reue reuk reus reuu rkos rkss roab roak roar roas rob- roba robb robe robo robs robu roca rocc roce rock roco rocs roea roer roes roka roke rokk roko rokr roks roku roob rook roor roos rora rorc rore rork roro roru rosa rosc rose roso ross roua roub roue rouk rous rras rrrr rsaa rscc rscs rsee rsos rsre rssa rsua ruas ruba rubb rube rubs rubu ruca ruce ruck ruer rues ruka ruke rukk ruku ruok rura rurc rure ruro rurs ruru rusa ruse rusk ruso russ rusu s-os sa-c saab saac saae saak saar saas saba sabb sabc sabe sabo sabr sabs sabu saca sacc sace sack saco sacr sacs sacu saeb saek saer saes saka sakb sake sakk sako saks saku saor saos saou sara sarc sare sark saro sarr sars saru sasa sasc sase sask saso sass saua sauc saue sauk saur saus sbaa sbac sbar sbas sbbs sbca sbcc sbcs sber sbor sbrk sbsa sbse sbus scaa scab scac scak scar scas scba sccc scce sccs scea scec scee scer sck- scob scok scoo scor scr- scra scrc scre scrs scsa scsc scso scsr scsu scua scub scur se-c se-e se-k se-o se-s se-u seaa seab seac seak sear seas seau seba sebe sebo sebs sec- seca secc sece seck seco secr secs secu seea seeb seec seek seer sees seeu seka seke sekk seko seku seoc seok sera serb serc sere serk sero serr sers seru sesa sesc sese seso sess seur skab skac skar skee skeo sker skes skoe skor skra skss skua skue skur soak soar soas soba sobe sobo sobr sobs sobu soca soce sock soco socr socs soea soec soeo soes soka soke sokk soko soku sook soor soos sora sorb sore soro sorr sors soru sosa sose soso soss soue souk sour sous sras srbc srcc sreb srec sreo sres sros srub ssaa ssab ssac ssao ssas ssau ssbr ssca sscc ssce sscs ssec ssee sses ssoc ssra ssrc ssrs sssa sssb sssc ssss suar suas sub- suba subb subo subs suc- succ suck sucr sucs suee suer sues sueu suka suke suks suku suor suos sur- sura surc sure suro surr surs suru sus- susa suse susk suso suss susu suus uabc uaca uaes uaoc uarc uars uaru uasa uaua ubac ubar ubba ubbe ubbo ubek uber uboc ubos ubra ucak ucar ucas ucbc ucca ucea uces ucka ucos ucrc ucsa ucsb ucsc ucsu ucua ueba uers uess ukba ukcc ukek ukes ukeu ukko ukok ukra ukrc uksa uksc ukur uocc uoke uor- uore urac urao uras urau urba urbe urbs urca ure- urea ures urka urke uro- uroa urok uroo urra urre ursa urse urso urss ursu uruk urur urus us-a us-k usaa usac usak usar usas usba usbc usbe usbr usbs usca uscc usce usco uscs usea usee user uses uska uske usoc usoe usos usra ussa ussb ussc usse ussr usss ussu usua usus uuoc uuuu

-aaa- a-sea aaaas aaace aaaee aaaoc aaarc aaasa aaass aabaa aabba aabra aacbc aaces aacos aacsa aacsb aacss aacus aaker aakko aakre aarau aasee aasra abaab ababa ababe ababs ababu abaca aback abaco abacs abaer abaka abake abako abara abare abaru abasa abase abask abass abbac abbar abbas abbes