-ing bbbb bbbs bbci bbin bbng bbrc bbrg bcbc bcbg bcbs bccc bcci bccs bcgs bcis bcnu bcrs bcru bcsc bcsn bcss bcuc bggs bgun bibb bibi bibs bicc bicg bici bics bigb bigc bigg bign bigs bigu biin biis bin- binc bing bini binn bins binu birb birg biri birn birr birs biru bis- bisc biss bisu bnib bnin bnrr bnss brcb bric brig brin bris brns brrr brrs brsb brsr bruc brug brun brus bsci bscs bsgs bsic bsin bsns bssc bubb bubi bubs bubu bucc buci bucs bucu bugg bugi bugs buic buin buir buis buiu bunb bung buni bunn buns bunu bur- burb burg buri burn burr burs buru busc busi buss busu buus cbbc cbbs cbcc cbcn cbcr cbcs cbcu cbgb cbir cbrn cbsc cbsi cbsn cbus ccbc ccbn cccb cccc ccci cccs cccu ccgc ccgs ccic ccii ccir ccis ccnb ccnc ccni ccnr ccns ccnu ccrc ccrg ccri ccrs ccsg ccsi ccsn ccss ccuc ccus cgcc cgcg cggs cgis cgns cgsb cgss cibc cibi cicc cici cicr cics cicu cigi cigs cigu ciii ciis cin- cinc cing cini cirb circ ciri cirr cirs cis- cisc cisn cisr ciss ciuc cius cnbc cnci cngi cnib cnic cnrc cnrr cnss crbc crbu crcc crcr crgs crib cric crig crin cris criu crns crss crub crug crun crus cscb cscc csci cscr cscs csgn csib csir csis csrc csrs cssr csur csus cub- cubb cubi cubs cucc cuci cucn cui- cuin cuir cuis curb curi curn curr curs cusb cusg cuss cusu gbbs gc-c gcbc gccc gccs gcic gcii gcrg gcss gcsu gggg ggrn ggss gibb gibs gicr gigg gigi gign gigs giis ging gini ginn gins ginu girg giri girn girr girs giru giss giur gius gncc gngc gnib gnin gnrc gnrr gnus grbr grcc grib gric grig grin gris grni grrr grrs grss grub grug grui grun grur grus gsis gsur gubb gubi gubs gubu guci gugb gugg gugi gugu guib guin guis gung gunn guns gurb gurg guri gurn gurr gurs guru gusb guss guus ibcs ibis ibns ibrc ibri ibsn ibss ibus icbc icbs iccb iccc icci iccn iccr iccs iccu icgc icis icnb icnc icns icrc icrr icrs icru icsb icsc icsi icsr icss icub icus igbc igcc iggs igis igni igns ignu igri igus iiii iiis iirc iirs iisc iisi iisr iisu iiuc incb inci incr incs ings inig inis inni innr inns innu inri inrs insc inss insu inui inun inus ircc ircg ircs ircu irgs iri- iric irig irin iris irrc irri irrs irsg irun irus isbn iscc isci iscn iscr iscs iscu isgc isic isin isis isrg isri issc issi issr isss issu isus iucc iugs iuiu iuss n-ii nbbc nbcc nbci nbcs nbic ncbc ncbi ncbs nccc ncci nccn nccr nccs nccu ncgr ncgs ncis ncnc ncrc ncri ncsc ncsi ncss ngic ngns ngri ngsn ngur nguu nibi nibs nicc nici nics nicu nigc nigg nigs niir niiu ning nini nins nirs niru nisi niss nisu niur nngn nnnn nnss nrcs nric nrrc nrsc nscc nscs nsic nsin nsis nsnr nsrc nssb nssc nssr nsss nsub nubc nubi nubs nuci nucs nucu nugs nuin nunc nung nunn nuns nurc nuri nurn nurr nurs nuru nusi nuss nusu rbbb rbbr rbbs rbis rbss rcbc rccb rccc rccs rcgc rcic rcis rcnr rcrg rcsc rcsi rcss rgbi rib- ribs ribu ricc rics rigg rigi rigs rigu riin riis ring rinn riri rirs risc risi riss risu rius rnbr rncs rngs rnin rrrr rrun rsbi rscc rscn rscs rsgb rsgc rsis rsnn rsnr rubb rubi rubs rubu ruci rugg rugi rugs ruin ruis runc rung runi runn runs rurc ruri rurs ruru rusi russ rusu ruun s-ib s-ic s-ii sbbs sbcc sbcs sbic sbig sbsi sbus scbi sccc sccs scgs sci- scic scin scir scis scnr scr- scrc scri scrn scrs scsc scsi scsn scsr scsu scub scug scun scur sgcb sgcg sggg sggs sgic sgss sibc sibi sibs sibu sicc sici sics sicu sigg sigi sign sigs sing sini sinn sins sinu sirc siri sirr sirs siru sisc sisi siss sisu siui sius sncc snib snig snir snns snrs snub snug snur snus srbc srcc srgb srib sris srni srnn srub ssbn ssbr sscc ssci sscs ssgs ssin ssis ssns ssrc ssrg ssri ssrs sssb sssc sssi ssss sub- subb subg subi subs suc- succ suci sucr sucs sug- sugg sugi suig suin suir suis sun- sunb sung suni sunn suns sunu sur- surc surg suri surn surr surs suru sus- susi suss susu suus ubbi ubic ubii ubir ubis ucbc ucci ucin ucrc ucsb ucsc ucsu ugcc ugcg uggs ugis ugni ugri ugur uguu uirr uncc uncg unci uncs ungu uni- unic unii unin unir unis unni unns unrs uns- unsc unsg unus urbi urbs urci urgi urgu urib uric urin uris uriu urni urns urri ursi urss ursu urun urur urus usbc usbr usbs uscc uscg uscs usin usis usnc usnr usnu ussb ussc ussr usss ussu usui usun usus uuni uuri uusi uuuu