bbbb bbci bbeb bbrc bcbc bccc bcci bcec bcer bcie bcor bcoz bcru bcuc bebb bebe bebi bebo beci becu beeb beer beic beir beo- beor berc bere beri bero berr beru beur beze bezi bezu bibb bibe bibi bibo bicc bice bici bico bieb bier bieu bio- bioc bioi biou birb bire biri biro birr biru bize bizu bizz bobb bobe bobi bobo bobu boce boco bocu boec boee boeo boer boi- boie boii boiu boob booc booe boor booz bor- bore bori boro borr boru borz boue bour bozi bozo brcb brce breb brec bree brei breo brer brez bric brie brio briz brob broc broe broo bror brou broz brrr bruc brue bruz bubb bube bubi bubo bubu bucc buce buci buco bucu bucz buer bueu buic buie buir buiu bur- burb bure buri buro burr buru burz buuz buze buzi buzz bzer bzie bzoe bzou bzzz c-bo cbbc cbcc cbce cbcr cbcu cbec cbee cber cbir cbre ccbc cccb cccc ccci cccu ccee ccic ccii ccir ccob ccoc ccrc ccre ccri ccuc cebu cec- cece ceci ceco ceeb ceec ceor ceou cer- cerc cere ceri cero ceui ceze cibc cibe cibi cibo cicc cici cico cicr cicu ciee cier ciez ciii ciob cior cirb circ cire ciri ciro cirr ciuc cize cobb cobe cobi cobo cobu coce coco cocu coir coob cor- corb corc core cori coro corr coub coue cour coze cozi cozz crbc crbu crcc crce crcr crcz cre- creb crec cree crei creo creu crib cric crie criu crob croc croe croo cror croz crub crue cruz cub- cubb cube cubi cucc cuce cuci cuer cui- cuir curb cure curi curo curr cuzo ebbc ebbo ebbr ebcc eber ebic eboe eboo ebor ebro ebru ebur ecbc ecbe eccb eccc ecce ecci ecco ecib eco- ecou ecrc ecri ecrr ecru eeee eeoc eerc eero eeze eico eiec eiei eier eiou eire eizo eoir eore eori erbb erbe ercc erce ereb erec erei erer erez eric erie erio eriu eriz erob eroc eroe eroi eroo errc erre erro erub eruc erur erzi eubc eubi euer euoi eur- eurc eure euro ezer ezio ezri ezuz ezzo i-be ibec ibie ibrc ibri ibro icbc iccb iccc icci icco iccr iccu icec icee icer icoc icor icrc icre icrr icru icub icue iecc ieie ieio iere ieri iiie iiii iiio iioi iioo iirc iiuc iobi ioci ioee ioii ioio iooi iooo iore iori irbe ircc ircu iree irer iri- iric irie irio irob iroc irrc irre irri iucc iuce iuiu izze izzo o-eo obbo obec ober obie oboe oboi obor obre obri obro ocbc occc occi oce ocee ocre ocro ocrr ocur oec- oecc oeec oere oici oier oiii oire oize oobe oobi oocr ooer oooo oore ooze oozi orbb orbe orbi orbo orbu orce orci orco ore- oreb orec oreo orer ori- oric orie orio oro- oroe oror oroz orri orro orub orzo orzu oucc ouer ouie ouii ouir our- oure ouro ouu- ouze ouzo ozee ozer ozie rbbb rbbr rcbc rcbo rccb rccc rcic rebb rebe rebo rebu recc rece reci recr recu recz reeb reii reir reiu reiz reou rere reri rero reru reue reuu reze rezi rezu rib- ribe ribo ribu ricc rice rico rier rieu riez riou rioz rire riri riue rize rizi rizu rizz rob- robb robe robi robo robu rocc roce roco roer roio roir roiu roiz roob rooi roor rooz rorc rore rori roro roru roub roue rouz roze rozi rozz rrrr rubb rube rubi rubu ruce ruci ruer ruez ruiz rurc rure ruri ruro ruru ruze ruzi u-ie ubbe ubbi ubbo uber ubic ubii ubir uboc ucbc ucci ucio ucoz ucrc ueir uirr uocc uor- uore urbe urbi urci ure- urib uric urie uriu uro- uroo urre urri urur uruz uuoc uuri uuuu uzeb uzer uzzi z-ro zber zebe zebu zeir zeri zero zeze zibo zice zico zirc ziri ziro zizi zizz zobo zoco zoic zoio zoo- zorb zorc zore zori zoro zouc zozo zozu zrce zrze zubi zubo zubr zubu zuce zuoz zurb zurr zuru zuzu zzzz