bbbb bbbs bbci bbeb bbrc bcbc bcbs bccc bcci bccs bcec bcer bces bcie bcis bcrs bcru bcsc bcss bcuc bebb bebe bebi beci becs becu beeb beer bees beic beir beis berc bere beri berr bers beru bes- bese bess beur bevs bibb bibe bibi bibs bicc bice bici bics bieb bier bies bieu biis birb bire biri birr birs biru bis- bisc bise biss bisu bive bivi brcb brce breb brec bree brei brer bres brev bric brie bris brrr brrs brsb brsr bruc brue brus bruv brvi bsci bscs bseb bsec bsee bser bses bsic bssc bsse bubb bube bubi bubs bubu bucc buce buci bucs bucu buer bueu buic buie buir buis buiu bur- burb bure buri burr burs buru busc buse busi buss busu buus buve bvsc cbbc cbbs cbcc cbce cbcr cbcs cbcu cbec cbee cber cbir cbre cbsc cbse cbsi cbus cbvb cbve cbvr ccbc cccb cccc ccci cccs cccu cccv ccee ccic ccii ccir ccis cciv ccrc ccre ccri ccrs ccsi ccss ccuc ccus ccvi ccvs cebs cebu cec- cece ceci cecs ceeb ceec cees cer- cerc cere ceri cers cesc cese cesi cesr cess ceui cibc cibe cibi cicc cici cicr cics cicu ciee cier cies ciii ciis cirb circ cire ciri cirr cirs cis- cisc cise cisr ciss cisv ciuc cius civc cive crbc crbu crcc crce crcr cre- creb crec cree crei cres creu crib cric crie cris criu crss crub crue crus cscb cscc csce csci cscr cscs csec csee cser csib csir csis csrc csrs csse cssr csur csus cub- cubb cube cubi cubs cucc cuce cuci cuer cues cui- cuir cuis curb cure curi curr curs cusb cuss cusu cuve cvbs cvcc cver cvii cvrr cvss ebbc ebbr ebbs ebcc eber ebes ebic ebis ebru ebur ebus ecbc ecbe eccb eccc ecce ecci eces ecib ecis ecrc ecri ecrr ecru ecrv ecsc ecse ecss ecsu ecus eecs eeee eees eerc eers eese eesi eics eiec eiei eier eies eire eirs eise eiss erbb erbe ercc erce ereb erec erei erer eres erev eric erie eris eriu errc erre errs erse ersi erub eruc erur erus eruv erve ervi esbs escb esce esci escr escs escu esee eser eses esie esis esri esse essi essu esui esus eubc eubi euer eur- eurc eure euse ever eves evie evir evre evrs evsc i-be ibcs ibec ibes ibie ibis ibrc ibri ibss ibus icbc icbs iccb iccc icci iccr iccs iccu icec icee icer ices icis icrc icre icrr icrs icru icsb icsc icse icsi icsr icss icub icue icus iecc ieie iere ieri iers iesc iesi iesr iesu iies iiie iiii iiis iirc iirs iisc iisi iisr iisu iiuc irbe ircc ircs ircu iree irer ires iri- iric irie iris irrc irre irri irrs irse irus irvs isbe iscc isci iscr iscs iscu iseb isec isee iser ises isic isie isis isri issc isse issi issr isss issu isus iucc iuce iucv iuiu iuse iuss ivbv ivec iver ives ivic ivie ivre ivrs ivue rbbb rbbr rbbs rbis rbss rcbc rccb rccc rccs rcic rcis rcsc rcsi rcss rcuv rcvr rcvs rebb rebe rebs rebu recc rece reci recr recs recu reeb rees reev reii reir reis reiu rere reri rers reru rese resi ress reue reus reuu reve revi revs rib- ribe ribs ribu ricc rice rics rier ries rieu riis rire riri rirs risc rise risi riss risu riue rius rive rivs rrrr rsbi rscc rscs rsee rsis rsre rubb rube rubi rubs rubu ruce ruci ruer rues ruis rurc rure ruri rurs ruru ruse rusi russ rusu ruve ruvi ruvu rv-c rver s-ib s-ic s-ii s-iv sbbs sbcc sbcs sber sbic sbse sbsi sbus scbi sccc scce sccs scec scee scer sci- scic scie scir scis sciv scr- scrc scre scri scrs scsc scsi scsr scsu scub scur se-c se-e se-i se-s se-u sebe sebi sebs sec- secc sece secr secs secu secv seeb seec seer sees seeu seie seii seir seis seiu serb serc sere seri serr sers seru serv sesc sese sesi sess seui seur seve sevi sibc sibe sibi sibs sibu sicc sice sici sics sicu siec sier sies sirc sire siri sirr sirs siru sisc sise sisi siss sisu siue siui sius sive sivi srbc srcc sreb srec sres srib sris srub ssbr sscc ssce ssci sscs ssec ssee sses ssis ssrc ssri ssrs sssb sssc sssi ssss sub- subb subi subs suc- succ suci sucr sucs suee suer sues sueu suev suie suir suis sur- surc sure suri surr surs suru surv sus- suse susi suss susu suus suvi suvs svcc svce svcs svec svic svir svsc u-ie ubbe ubbi uber ubic ubii ubir ubis ucbc ucci uces ucrc ucsb ucsc ucsu ueir uers uess uies uirr uise urbe urbi urbs urci ure- ures urib uric urie uris uriu urre urri urse ursi urss ursu urur urus urve usbc usbe usbr usbs uscc usce uscs usee user uses usie usis ussb ussc usse ussr usss ussu usui usus uuri uusi uuuu uv-b uv-c uver uvic uvis uvri uvvu vbcc vcbi vcci vcrs vecc veci veer vees veie veii veir veis ver- verb vere veri vers vesc vese vesi vess veur veve vevi vibe vibs vic- vice vici vics vier vies vieu viii virb virc vire viri virr viru visc vise visi viss visu viue vive vivi vrci vris vrse vrsi vsee vses vsic vssc vsse vues vuir vurb vuse vver vvsb vvvv