-ose bbbb bbbs bbci bbeb bbrc bcbc bcbs bccc bcci bccs bcec bcer bces bcie bcis bcor bcos bcrs bcsc bcss bebb bebe bebi bebo beci becs beeb beer bees beic beir beis beo- beor beos berc bere beri bero berr bers bes- bese beso bess bibb bibe bibi bibo bibs bicc bice bici bico bics bieb bier bies biis bio- bioc bioi bios birb bire biri biro birr birs bis- bisc bise biso biss bobb bobe bobi bobo bobs boce boco bocs boec boee boeo boer boes boi- boie boii bois boob booc booe boor boos bor- bore bori boro borr bors bosc bose bosi boso boss brcb brce breb brec bree brei breo brer bres bric brie brio bris brob broc broe broo bror bros brrr brrs brsb brsr bsci bscs bseb bsec bsee bser bses bsic bsos bssc bsse c-bo cbbc cbbs cbcc cbce cbcr cbcs cbec cbee cber cbir cbre cbsc cbse cbsi ccbc cccb cccc ccci cccs ccee ccic ccii ccir ccis ccob ccoc ccrc ccre ccri ccrs ccsi ccss cebs cec- cece ceci ceco cecs ceeb ceec cees ceor ceos cer- cerc cere ceri cero cers cesc cese cesi cesr cess cibc cibe cibi cibo cicc cici cico cicr cics ciee cier cies ciii ciis ciob cior cios cirb circ cire ciri ciro cirr cirs cis- cisc cise cisr ciss cobb cobe cobi cobo cobs coce coco coes coir cois coob coos cor- corb corc core cori coro corr cors cosc cose cosi coso coss crbc crcc crce crcr cre- creb crec cree crei creo cres crib cric crie cris crob croc croe croo cror crss cscb cscc csce csci csco cscr cscs csec csee cser csib csio csir csis csob csor csos csrc csrs csse cssr ebbc ebbo ebbr ebbs ebcc eber ebes ebic ebis eboe eboo ebor ebos ebro ecbc ecbe eccb eccc ecce ecci ecco eces ecib ecis eco- ecos ecrc ecri ecrr ecsc ecse ecss eecs eeee eees eeoc eerc eero eers eese eesi eico eics eiec eiei eier eies eire eirs eise eiso eiss eoes eoir eois eore eori erbb erbe ercc erce ereb erec erei erer eres eric erie erio eris erob eroc eroe eroi eroo eros errc erre erro errs erse ersi erso esbo esbs escb esce esci esco escr escs esee eseo eser eses esie esis eso- esos esri esse essi esso i-be ibcs ibec ibes ibie ibis ibos ibrc ibri ibro ibss icbc icbs iccb iccc icci icco iccr iccs icec icee icer ices icis icoc icor icos icrc icre icrr icrs icsb icsc icse icsi icsr icss iecc ieie ieio iere ieri iers iesc iesi ieso iesr iies iiie iiii iiio iiis iioi iioo iios iirc iirs iisc iisi iisr iobi ioci ioee ioii ioio iooi iooo ioos iore iori iors ioso irbe ircc ircs iree irer ires iri- iric irie irio iris irob iroc irrc irre irri irrs irse isbe iscc isci isco iscr iscs iseb isec isee iseo iser ises isic isie isis iso- isoc isor isos isri issc isse issi isso issr isss o-eo obbo obec ober obes obie obis oboe oboi obor obos obre obri obro obsr obss ocbc occc occi oce ocee ocis ocos ocre ocro ocrr ocrs oec- oecc oeec oere oers oese oici oier oies oiii oios oire oisc oise oobe oobi oocr ooer ooes oooo ooos oore oose oosi orbb orbe orbi orbo orbs orce orci orco orcs ore- oreb orec oreo orer ores ori- oric orie orio oris oro- oroe oror oros orri orro orrs orse orsi orso osbe oscc osce osci osco osec osee osei oser oses osie osii osis osoi osoo osor osos osro ossb osse ossi osso rbbb rbbr rbbs rbis rbss rcbc rcbo rccb rccc rccs rcic rcis rcos rcsc rcsi rcss rebb rebe rebo rebs recc rece reci recr recs reeb rees reii reir reis reos rere reri rero rers rese resi reso ress rib- ribe ribo ribs ricc rice rico rics rier ries riis rios rire riri rirs risc rise risi riso riss rob- robb robe robi robo robs rocc roce roco rocs roer roes roio roir rois roob rooi roor roos rorc rore rori roro rosc rose rosi roso ross rrrr rsbi rscc rscs rsee rsis rsos rsre s-ib s-ic s-ii s-os sbbs sbcc sbcs sber sbic sbor sbse sbsi scbi sccc scce sccs scec scee scer sci- scic scie scio scir scis scob scoo scor scr- scrc scre scri scrs scsc scsi scso scsr se-c se-e se-i se-o se-s sebe sebi sebo sebs sec- secc sece seco secr secs seeb seec seer sees seie seii seir seis seoc seoi serb serc sere seri sero serr sers sesc sese sesi seso sess sibc sibe sibi sibo sibs sicc sice sici sico sics siec sier sies sioe sior sios sirc sire siri siro sirr sirs sisc sise sisi siss sobe sobo sobr sobs soce soci soco socr socs soec soeo soes soic soie soir sois soor soos sorb sore sori soro sorr sors sose sosi soso soss srbc srcc sreb srec sreo sres srib sris sros ssbr sscc ssce ssci sscs ssec ssee sses ssis ssoc ssrc ssri ssrs sssb sssc sssi ssss