bbbb bbci bbeb bbrc bbrg bcbc bcbg bccc bcci bcec bcer bcie bcru bcuc bebb bebe bebi beci becu beeb beeg beer begg begi begu beic beir berc bere berg beri berr beru beur bibb bibe bibi bicc bice bicg bici bieb bier bieu bigb bigc bige bigg bigu birb bire birg biri birr biru bive bivi brcb brce breb brec bree breg brei brer brev bric brie brig brrr bruc brue brug bruv brvi bubb bube bubi bubu bucc buce buci bucu buer bueu buge bugg bugi buic buie buir buiu bur- burb bure burg buri burr buru buve cbbc cbcc cbce cbcr cbcu cbec cbee cber cbgb cbir cbre cbvb cbve cbvg cbvr ccbc cccb cccc ccci cccu cccv ccee ccgc ccic ccii ccir cciv ccrc ccre ccrg ccri ccuc ccvi cebu cec- cece ceci ceeb ceec cege cer- cerc cere ceri ceui cgcc cgcg cger cibc cibe cibi cicc cici cicr cicu ciee cier cigi cigu ciii cirb circ cire ciri cirr ciuc civc cive crbc crbu crcc crce crcr cre- creb crec cree creg crei creu crib cric crie crig criu crub crue crug cub- cubb cube cubi cucc cuce cuci cuer cui- cuir curb cure curi curr cuve cvcc cver cvii cvrg cvrr ebbc ebbr ebcc eber ebic ebru ebur ecbc ecbe eccb eccc ecce ecci ecib ecig ecrc ecri ecrr ecru ecrv eeee eerc eerg egbe egbu egcc egcg egcr egec egee eger eggb egge eggi egir egre egri eiec eiei eier eige eigg eire erbb erbe ercc erce ereb erec erei erer erev erg- ergg ergi eric erie eriu errc erre erub eruc erur eruv erve ervi eubc eubi euer euge eur- eurc eure ever evie evir evre gc-c gcbc gccc gcic gcii gciv gcrg gebe gebi gece geer gege gegg geic geie geig geir gerb gere geri geru geue geve gggg gibb gibe gicr gier gige gigg gigi gire girg giri girr giru giue giur give grbr grcc grce greb grec gree greg greu grev grib gric grie grig grrr grub grue grug grui grur grve gubb gubi gubu guci guer gugb guge gugg gugi gugu guib gurb gure gurg guri gurr guru gvvv i-be ibec ibeg ibge ibie ibrc ibri icbc iccb iccc icci iccr iccu icec icee icer icgc icrc icre icrr icru icub icue iecc ieie iere ieri igbc igcc iger igri igue iiie iiii iirc iiuc irbe ircc ircg ircu iree irer iri- iric irie irig irrc irre irri iucc iuce iucv iuge iuiu ivbv ivec iver ivic ivie ivig ivre ivue rbbb rbbr rcbc rccb rccc rcgc rcic rcrg rcuv rcvr rebb rebe rebu recc rece reci recr recu reeb reev rege regi regr regu reii reir reiu rere rerg reri reru reue reuu reve revi rgbe rgbi rib- ribe ribu ricc rice rier rieu rige rigg rigi rigu rire riri riue rive rrrr rubb rube rubi rubu ruce ruci ruer ruge rugg rugi rurc rure ruri ruru ruve ruvi ruvu rv-c rver u-ie ubbe ubbi uber ubic ubii ubir ucbc ucci ucrc ueir ugcc ugcg ugri ugur uguu uige uirr urbe urbi urci ure- urge urgi urgu urib uric urie uriu urre urri urur urve uuri uuuu uv-b uv-c uver uvgi uvic uvri uvvu vbcc vbrg vcbi vcci vcug vecc veci veer vege veie veii veir ver- verb vere veri veur veve vevi vgcc vibe vic- vice vici vier vieu vige vigr viii virb virc vire virg viri virr viru viue vive vivi vrci vugg vuir vurb vurg vver vvvv