crcr cre- creb crec cree creg creo cres creu crgs crkc crob croc croe crok croo cror crss crub crue crug cruk crus cscb cscc csce csco cscr cscs csec csee cser csks csob csor csos csrc csrs csse cssr csur csus cub- cubb cube cubs cucc cuce cuck cuek cuer cues cuk- cuke curb cure curo curr curs cusb cusg cusk cuso cuss cusu ebbc ebbo ebbr ebbs ebcc eber ebes eboe eboo ebor ebos ebro ebru ebur ebus ecbc ecbe eccb eccc ecce ecco eces ecgs ecko ecks eco- ecog ecos ecou ecrc ecrr ecru ecsc ecse ecss ecsu ecus eecs eeee eees eegs eeke eeks eeoc eerc eerg eero eers eese eesk egbe egbu egcc egcg egcr egec egee eger eggb egge eggo eggs egks ego- egor egos egre egsc egss ekco ekeb ekek eker ekes ekgs ekos ekur eoes eore eous erbb erbe ercc erce ereb erec erer eres erg- ergg ergo ergs erke erks erob eroc eroe eroo eros errc erre erro errs erse erso erub eruc erur erus esbo esbs escb esce esco escr escs escu esee esek eseo eser eses eske esko esks esku eso- esok esos esse essg esso essu esus eubc euer euge euos eur- eurc eure euro euse gbbo gbbs gc-c gcbc gccc gccs gcos gcrg gcse gcss gcsu gebe gece geck geek geer gees gege gegg gego geko geo- geog geos gerb gere gero gers geru gesg gesk geso gess gesu geue gggg ggss gobe gobo gobs goce gocr goer goes gogo gogs goke goku goog gook goor goos gorb gore gorg goro gorr gors gose goso goss gosu gou- goug gouk gour gous grbr grcc grce greb grec gree greg gres greu grob groc grog grok groo gror gros grou grrr grrs grss grub grue grug grur grus gskb gsoc gsos gsse gsur gubb gubs gubu guck guer gues gugb guge gugg gugu guos gurb gure gurg gurk guro gurr gurs guru gusb guse guss guus k-os kbbb kbbc kbbe kbbg kbbk kbbo kbbr kbbs kbbu kbcb kbce kbck kbco kbcr kbcs kbcu kbeb kbec kbee kbek kbeo kber kbes kbgb kbge kbgg kbgo kbgr kbkb kbkg kbkk kbko kbkr kbob kboc kboe kbok kboo kbos kbrb kbrc kbre kbrg kbrk kbro kbru kbsb kbsg kbsk kbso kbsr kbss kbsu kbub kbuc kbue kbuk kbur kbus kbuu kcbc kcbk kcbr kcbs kcbu kccb kccc kcck kccr kccu kceb kcec kcee kceg kceo kceu kcgc kcgr kcgs kckc kckk kcko kckr kcob kcoe kcog kcor kcos kcou kcrc kcrg kcro kcrr kcrs kcru kcsb kcsc kcse kcsg kcsr kcss kcsu kcub kcue kcuk kebb kebc kebe kebr kebu kecg keck keco kecr keek keer kees kege kegg kegk kegr kegs kekb kekc keke keko keks keku keok keos ker- kerb kerc kere kerk kero kerr kers keru kesb kesc kesk keso kesr kess keug keur keus kgbb kgbc kgbr kgcb kgcc kgce kgcr kgeb kgec kgeo kggg kggo kggr kgks kgoe kgor kgos kgou kgrb kgrc kgre kgrg kgrk kgro kgrr kgrs kgso kgsr kgus kkbb kkbe kkbg kkbo kkbr kkbs kkcb kkck kkco kkcr kkcs kkeg kkgb kkgo kkgr kkkk kkob kkoo kkor kkrb kkrc kkre kkrk kkro kkrr kkrs kkse kksr kkss kksu kkus kkuu kobb kobc kobe kobk kobo kobr kobs kobu kocb kock kocs koes kogb koge kogg kogo kogu kokb kokc koke kokk koko kokr koks koku koob kooc koog kook kooo koor koos koou korb korc kore korg kork koro korr kors koru kos- kosb kosc kose kosg koso kosr koss kosu koub koue kour kous kouu krbb krbe krbg krbk krbr krcb krcc krce krcg krco krcs krcu kreb krec kree krek kreo kres kreu krgs krkc krke krkk krko krkr krks krku krob kroc kroe krog krok kroo kror kros krrb krrc krre krrg krrk krro krrr krrs krsc krse krsk krsr krss krsu kruc krue krug kruk krur ksbc ksbr ksbs kscb ksce ksck ksco kscr kscs kscu ksec ksee kseg ksek kseo kser ksgc ksgg ksgr ksgu kskb kske kskg kskk ksko kskr ksks ksku ksob ksoc ksok ksoo ksor ksos ksou ksrb ksrg ksro ksrr ksrs ksse ksso kssr ksss kssu ksub ksue ksug ksuu kubb kubc kube kubo kubr kubs kubu kucb kucc kuce kuco kucr kuek kues kueu kugb kuge kugo kugr kugs kuke kukk kuks kuku kuok kuoo kuos kurb kure kurk kuro kurr kurs kuru kusb kusc kusg kuso kusu kuub kuuk kuur kuuu o-eo obbo obec ober obes obkb oboe obok obor obos obre obro obsr obss obus ocbc occc oce ocee ocke ocks ocos ocre ocro ocrr ocrs ocur oec- oecc oeec oegb oere oers oese ogb ogbe ogee oger ogge ogog ogou ogre ogro ogus okcu oker okes okgo okko okok okor okre okro okso okur okus oobe oocr ooer ooes ooku oooo ooos oore oose oous orbb orbe orbo orbs orbu orce orco orcs ore- oreb orec oreg orek oreo orer ores orge orgo orgs orke orko oro- oroe orok oror oros orro orrs orse orsk orso orsu orub orus osbe oscc osce osco osec osee osek oser oses osku osoo osor osos osro ossb osse osso ossu oubs oucc ouer ouge our- oure ouro ours ouse ouu- rbbb rbbr rbbs rbss rcbc rcbo rccb rccc rccs rcgc rcos rcrg rcsc rcss rebb rebe rebk rebo rebs rebu recc rece reck recr recs recu reeb reek rees rege rego regr regs regu reke reko reks reog reos reou rere rerg rero rers reru rese reso ress reue reuk reus reuu rgbe rkos rkss rob- robb robe robo robs robu rocc roce rock roco rocs roeg roer roes roge rogg rogo roke rokk roko rokr roks roku roob roog rook roor roos rorc rore rork roro roru rosc rose roso ross roub roue rouk rous rrrr rscc rscs rsee rsgb rsgc rsos rsre rubb rube rubs rubu ruce ruck ruer rues ruge rugg rugs ruke rukk ruku ruok rurc rure ruro rurs ruru ruse rusk ruso russ rusu s-os sbbs sbcc