-ose bbbb bbbs bbeb bebb bebe bebi bebo beeb beek beer bees beik beir beis beke beki beko beks beo- beok beor beos bere beri berk bero berr bers bes- bese besk beso bess bevo bevs bibb bibe bibi bibo bibs bieb bier bies biis bike biko bio- bioi bios birb bire biri birk biro birr birs bis- bise bisk biso biss bive bivi bobb bobe bobi bobo bobs boee boeo boer boes boi- boie boii bois boke boki boko boks boob booe book boor boos bor- bore bori bork boro borr bors bose bosi bosk boso boss bove bovi bovo breb bree brei brek breo brer bres brev brie brik brio bris brkb brob broe brok broo bror bros brrr brrs brsb brsr brvi bseb bsee bser bses bsos bsse ebbo ebbr ebbs eber ebes ebis eboe eboo ebor ebos ebro eeee eees eeke eeks eero eers eese eesi eesk eiei eier eies eike eiki eiko eiks eire eirs eise eisk eiso eiss ekeb ekek eker ekes ekis ekki ekoi ekos eksi eoes eoir eois eore eori erbb erbe ereb erei erer eres erev erie erik erio eris erke erki erks erob eroe eroi eroo eros erre erro errs erse ersi erso erve ervi esbo esbs esee esek eseo eser eses esie esik esis eske esko esks eso- esok esos esri esse essi esso ever eves evie evir evoe evoo evos evre evrs evvk i-be ibes ibie ibis ibos ibri ibro ibss ieie ieio iere ieri iers iesi ieso iesr iies iiie iiii iiio iiis iioi iioo iios iirs iisi iisr ikee iker ikes ikki ikko ikoo ikri iobi ioee ioii ioio ioke ioko iooi iooo ioos iore iori iors ioso irbe iree irer ires iri- irie irio iris irki irks irob irov irre irri irrs irse irvs isbe iseb isee iseo iser ises isie isis isko iso- isok isor isos isri isse issi isso issr isss ivbv iver ives ivie ivor ivre ivrs k-os kbbb kbbe kbbi kbbk kbbo kbbr kbbs kbeb kbee kbek kbeo kber kbes kbev kbib kbie kbik kbio kbis kbkb kbkk kbko kbkr kbkv kbob kboe kboi kbok kboo kbos kbov kbrb kbre kbri kbrk kbro kbrv kbsb kbsi kbsk kbso kbsr kbss kbsv kbvb kbvo kbvr kebb kebe kebi kebr keek keer kees keib keii keik keio keir keis kekb keke keki keko keks keok keos ker- kerb kere keri kerk kero kerr kers kerv kesb kesi kesk keso kesr kess keve kevi kevs kibb kibe kibi kibo kibr kibs kier kies kiev kiii kiik kiis kiki kikk kiko kikr kioe kioi kiok kioo kirb kiri kirk kiro kirr kirs kirv kise kisi kisk kiso kisr kiss kisv kive kivi kkbb kkbe kkbi kkbo kkbr kkbs kkik kkkk kkob kkoo kkor kkov kkrb kkre kkrk kkro kkrr kkrs kkrv kkse kksi kksr kkss kkvr kkvv kobb kobe kobi kobk kobo kobr kobs koei koes koii koir koiv kokb koke koki kokk koko kokr koks koob kooi kook kooo koor koos koov korb kore kori kork koro korr kors korv kos- kosb kose kosi koso kosr koss kove kovi kovk kovo kovr krbb krbe krbi krbk krbr kreb kree krei krek kreo kres krev krib krik krio kris kriv krke krki krkk krko krkr krks krkv krob kroe kroi krok kroo kror kros krov krrb krre krri krrk krro krrr krrs krse krsk krsr krss krsv krvb krve krvi krvk krvo krvr krvs krvv ksbi ksbr ksbs ksbv ksee ksei ksek kseo kser ksev ksib ksii ksik ksir ksis ksiv kskb kske kskk ksko kskr ksks ksob ksoi ksok ksoo ksor ksos ksrb ksro ksrr ksrs ksrv ksse kssi ksso kssr ksss ksve ksvi ksvr kvbr kver kves kvie kvik kvir kvis kviv kvob kvoe kvoi kvok kvoo kvor kvov kvre kvri kvro kvrr kvrv kvsi kvso kvsr kvss kvsv kvvr kvvs kvvv o-eo obbo ober obes obie obis obkb oboe oboi obok obor obos obre obri obro obsr obss obvi obvs oere oers oese oier oies oiii oike oiko oiks oios oire oise oker okes okie okir okko okok okor okre okro oksi okso oobe oobi ooer ooes oooo ooos oore oose oosi orbb orbe orbi orbo orbs ore- oreb orek oreo orer ores ori- orie orio oris orke orko oro- oroe orok oror oros orri orro orrs orse orsi orsk orso orve orvr orvs osbe osee osei osek oser oses osie osii osik osis oski osoi osoo osor osos osov osro ossb osse ossi osso osve ovee over ovi- ovie ovis ovo- ovoo ovre rbbb rbbr rbbs rbis rbss rebb rebe rebk rebo rebs reeb reek rees reev reii reik reir reis reke reki reko reks reos rere reri rero rers rese resi reso ress reve revi revo revs rib- ribe ribo ribs riek rier ries riis rike riki rikk rios rire riri rirs rise risi risk riso riss rive rivo rivs rkos rkss rksv rob- robb robe robi robo robs roer roes roev roik roio roir rois roke roki rokk roko rokr roks roob rooi rook roor roos rore rori rork roro rose rosi roso ross rove rovi rovo rovs rrrr rsbi rsee rsis rsos rsre rver rvik s-ib s-ii s-iv s-os sbbs sber sbor sbrk sbse sbsi se-e se-i se-k se-o se-s sebe sebi sebo sebs seeb seek seer sees seie seii seik seir seis seke seki sekk seko seoi seok serb sere seri serk sero serr sers serv sese sesi seso sess seve sevi sibe sibi sibo sibs siek sier sies siik sike siki siko sikr siks sioe sior sios sire siri sirk siro sirr sirs sise sisi sisk siss sive sivi skee skei skeo sker skes skie skik skio skir skis skiv skoe skor skov skss sobe sobo sobr sobs soeo soes soie soik soir sois soke soki sokk soko sook soor soos sorb sore sori soro sorr sors sose sosi soso soss sosv sove sovo sovs sreb sreo sres srib sris sros ssbr ssee sses ssis ssri ssrs sssb sssi ssss svir svor veer vees veie veii