bbbb bbch bbci bbeb bbrc bcbc bccc bcci bcec bcer bche bcie bcru bcuc bebb bebe bebi bech beci beck becu beeb beek beer behr beic beik beir beke beki berc bere beri berk berr beru beuk beur bhcc bher bhie bhir bhur bhuu bibb bibe bibi bicc bice bich bici bick bieb bier bieu bihe bihi bihu bike bikh biku birb bire biri birk birr biru brcb brce breb brec bree brei brek brer bric brie brih brik brkb brrr bruc brue bruh bubb bube bubi bubu bucc buce buch buci buck bucu buer bueu buhe buhi buhr buic buie buik buir buiu buke bukh buki bukk buku bur- burb bure burh buri burk burr buru cbbc cbcc cbce cbcr cbcu cbec cbee cber cbir cbkr cbre cbrh ccbc cccb cccc ccci cccu ccee cche cchr ccic ccii ccir ccrc ccre ccri ccuc cebu cec- cece ceci ceeb ceec ceke cer- cerc cere ceri ceui chce chch chci cheb chec chee cheh chek cher cheu chib chic chie chih chik chir chiu chkb chrb chrc chrr chub chui chuk chur cibc cibe cibi cicc cich cici cicr cicu ciee cier cihr ciii cikr cirb circ cire cirh ciri cirk cirr ciuc ckbc ckbe ckbi ckch ckck cker ckrc crbc crbu crcc crce crcr cre- creb crec cree creh crei creu crib cric crie crik criu crkc crub crue cruk cub- cubb cube cubi cucc cuce cuci cuck cuek cuer cui- cuir cuk- cuke curb cure curi curr ebbc ebbr ebcc eber ebic ebru ebur ecbc ecbe eccb eccc ecce ecci eche ecib ecrc ecri ecrr ecru eeee eeke eerc ehcc eheh eher eheu ehre eich eick eiec eiei eier eike eiki eire ekch ekeb ekek eker ekki ekur erbb erbe ercc erce erch ereb erec erei erer erhc erhu eric erie erih erik eriu erke erki errc erre erub eruc eruh erur eubc eubi euch euer eur- eurc eure h-ii hbic hcbc hccb hccc hcch hchi hebb hebe hebi hebr hech heck heeb heek heer hehe heic heie heih heik heir heke heku herb herc here heri herk herr heru heue heui heuk heur hhhh hi-c hibi hibu hicc hice hich hick hiei hier hieu hihc hihe hihi hiie hiiu hike hiki hiku hire hiri hirk hiru hkbu hkcc hkir hree hrib hrrc hubb hube hubi huch huck hucu huer huhi huhu huib huie huik huir huke huki hure huri hurk hurr huru huub i-be ibec ibeh ibie ibrc ibri icbc iccb iccc icci iccr iccu icec icee icer ichc iche ichi ichr ichu icke icrc icre icrr icru icub icue iecc ieie iere ieri ihcc iher ihrc ihre ihub iiie iiii iirc iiuc ikee iker ikki ikri ikue irbe ircc ircu iree irer iri- iric irie irki irrc irre irri iucc iuce iuiu k-ci kbbb kbbc kbbe kbbi kbbk kbbr kbbu kbcb kbce kbch kbci kbck kbcr kbcu kbeb kbec kbee kbeh kbek kber kbhb kbhc kbhe kbhh kbhi kbhr kbib kbic kbie kbik kbiu kbkb kbkk kbkr kbrb kbrc kbre kbrh kbri kbrk kbru kbub kbuc kbue kbuk kbur kbuu kcbc kcbi kcbk kcbr kcbu kccb kccc kcci kcck kccr kccu kceb kcec kcee kcei kceu kche kchh kchi kchk kchr kchu kcic kcie kcii kcir kciu kckc kckk kckr kcrc kcrh kcri kcrr kcru kcub kcue kcuh kcui kcuk kebb kebc kebe kebi kebr kebu kech keck kecr keeh keek keer kehk kehr keib keii keik keir kekb kekc keke keki keku ker- kerb kerc kere keri kerk kerr keru keur khbc khbr khcb khcc khch khck kheb khec kher khhk khic khii khke khki khkk khkr khri khrk khrr khub khui khuk khur kibb kibc kibe kibi kibr kibu kicb kicc kice kick kicr kier kieu kihc kihh kihi kihk kihr kihu kiic kiii kiik kiiu kikc kiki kikk kikr kiku kirb kirc kiri kirk kirr kiru kiur kiuu kkbb kkbe kkbi kkbr kkcb kkch kkci kkck kkcr kkhb kkhh kkhi kkhk kkhr kkic kkik kkkk kkrb kkrc kkre kkrh kkrk kkrr kkuu krbb krbe krbi krbk krbr krcb krcc krce krch krci krcu kreb krec kree kreh krei krek kreu krhc krib krik krkc krke krkh krki krkk krkr krku krrb krrc krre krri krrk krrr kruc krue kruh krui kruk krur kubb kubc kube kubr kubu kucb kucc kuce kuch kuci kucr kuei kuek kueu kuhi kuhu kuic kuie kuih kuik kuke kukh kuki kukk kuku kurb kure kuri kurk kurr kuru kuub kuuk kuur kuuu rbbb rbbr rcbc rccb rccc rchb rcic rebb rebe rebk rebu recc rece rech reci reck recr recu reeb reek rehb rehe rehi reii reik reir reiu reke reki rere reri reru reue reuk reuu rhce rheb rhee rhib rhue rib- ribe ribu ricc rice rich rick riek rier rieu rike riki rikk riku rire riri riue rrrr rubb rube rubi rubu ruce ruch ruci ruck ruer ruhe ruhh ruhi ruhr ruke rukh ruki rukk ruku rurc rure ruri ruru u-ie ubbe ubbi ubek uber ubic ubii ubik ubir ucbc ucci uche uchi ucrc ueir ueki uher uhuh uirr ukcc ukek ukeu ukrc ukur urbe urbi urch urci ure- ureh urib uric urie urik uriu urke urre urrh urri uruk urur uuri uuuu