bbbb bbbs bbci bbrc bbrg bcbc bcbg bcbs bccc bcci bccs bcgs bcis bcrs bcru bcsc bcss bcuc bggs bibb bibi bibs bicc bicg bici bics bigb bigc bigg bigs bigu biis birb birg biri birr birs biru bis- bisc biss bisu brcb bric brig bris brrr brrs brsb brsr bruc brug brus bsci bscs bsgs bsic bssc bubb bubi bubs bubu bucc buci bucs bucu bugg bugi bugs buic buir buis buiu bur- burb burg buri burr burs buru busc busi buss busu buus cbbc cbbs cbcc cbcr cbcs cbcu cbgb cbir cbsc cbsi cbus ccbc cccb cccc ccci cccs cccu ccgc ccgs ccic ccii ccir ccis ccrc ccrg ccri ccrs ccsg ccsi ccss ccuc ccus cgcc cgcg cggs cgis cgsb cgss cibc cibi cicc cici cicr cics cicu cigi cigs cigu ciii ciis cirb circ ciri cirr cirs cis- cisc cisr ciss ciuc cius crbc crbu crcc crcr crgs crib cric crig cris criu crss crub crug crus cscb cscc csci cscr cscs csib csir csis csrc csrs cssr csur csus cub- cubb cubi cubs cucc cuci cui- cuir cuis curb curi curr curs cusb cusg cuss cusu gbbs gc-c gcbc gccc gccs gcic gcii gcrg gcss gcsu gggg ggss gibb gibs gicr gigg gigi gigs giis girg giri girr girs giru giss giur gius grbr grcc grib gric grig gris grrr grrs grss grub grug grui grur grus gsis gsur gubb gubi gubs gubu guci gugb gugg gugi gugu guib guis gurb gurg guri gurr gurs guru gusb guss guus ibcs ibis ibrc ibri ibss ibus icbc icbs iccb iccc icci iccr iccs iccu icgc icis icrc icrr icrs icru icsb icsc icsi icsr icss icub icus igbc igcc iggs igis igri igus iiii iiis iirc iirs iisc iisi iisr iisu iiuc ircc ircg ircs ircu irgs iri- iric irig iris irrc irri irrs irsg irus iscc isci iscr iscs iscu isgc isic isis isrg isri issc issi issr isss issu isus iucc iugs iuiu iuss rbbb rbbr rbbs rbis rbss rcbc rccb rccc rccs rcgc rcic rcis rcrg rcsc rcsi rcss rgbi rib- ribs ribu ricc rics rigg rigi rigs rigu riis riri rirs risc risi riss risu rius rrrr rsbi rscc rscs rsgb rsgc rsis rubb rubi rubs rubu ruci rugg rugi rugs ruis rurc ruri rurs ruru rusi russ rusu s-ib s-ic s-ii sbbs sbcc sbcs sbic sbig sbsi sbus scbi sccc sccs scgs sci- scic scir scis scr- scrc scri scrs scsc scsi scsr scsu scub scug scur sgcb sgcg sggg sggs sgic sgss sibc sibi sibs sibu sicc sici sics sicu sigg sigi sigs sirc siri sirr sirs siru sisc sisi siss sisu siui sius srbc srcc srgb srib sris srub ssbr sscc ssci sscs ssgs ssis ssrc ssrg ssri ssrs sssb sssc sssi ssss sub- subb subg subi subs suc- succ suci sucr sucs sug- sugg sugi suig suir suis sur- surc surg suri surr surs suru sus- susi suss susu suus ubbi ubic ubii ubir ubis ucbc ucci ucrc ucsb ucsc ucsu ugcc ugcg uggs ugis ugri ugur uguu uirr urbi urbs urci urgi urgu urib uric uris uriu urri ursi urss ursu urur urus usbc usbr usbs uscc uscg uscs usis ussb ussc ussr usss ussu usui usus uuri uusi uuuu