bbbb bbbs bbci bblb bbls bcbc bcbs bccc bcci bccl bccs bcis bcit bcsc bcsl bcss bctc bcts bcuc bibb bibi bibl bibs bicc bici bics biis bili bill bils bilt bilu bis- bisc bisl biss bist bisu bitc bits bitt bitu blbt blcu blic blis blit blls blss blst blts blub blus blut bsci bscs bsic bslc bssc bsts btcc btcl btcs btss bttb btus bubb bubi bubs bubu bucc buci bucs bucu buic buis buit buiu bulb buli bull buls bult bulu busc busi buss bust busu but- buti buts butt buus cbbc cbbs cbcc cbcl cbcs cbct cbcu cbit cblb cblc cbsc cbsi cbtc cbtl cbus ccbc cccb cccc ccci cccl cccs cccu ccic ccii ccil ccis cclc ccli ccls ccsi ccsl ccss ccst cctb cctc cctl cctt ccuc ccus ccut cibc cibi cicc cici cics cict cicu ciii ciis ciit cili cill cils cilt cis- cisc cisl ciss cist citb citi citl cits citt citu ciuc cius clib clic clii clis clit clsc cltb cltc clts club clut cscb cscc csci cscl cscs csib csis csit cslu cstc csts csus ctbi ctbs ctic ctls ctsc ctss ctsu ctts cub- cubb cubi cubs cucc cuci cui- cuil cuis cuit culb culc cull culs cult cusb cuss cust cusu cut- cutc cuts cutt ibcs ibis ibss ibtb ibtc ibtl ibts ibus icbc icbs iccb iccc icci iccl iccs icct iccu icis icll icsb icsc icsi icss icst icts icub icus iiii iiis iiit iisc iisi iist iisu iitt iiuc ilbc ilic ilis ilit ill- illi ills illt ilts ilus ilut isbl isbt iscc isci iscs isct iscu isic isil isis isit isls issc issi isss issu istc isti ists isus itbs itcs itic itil itis itll itsi itsu iucc iuiu iuss iust lbcc lbsc lcbc lccc lccs lcis lcls lcsc lctl lcts libc libs libu lics lict liii liis lilb lili lill lils lilt lilu lisi liss list lisu litb liti litl lits litt litu lius liut llbs llcc llcs lllc llll lsbu lscb lscs lsts ltbl ltcc ltci ltcs ltib ltsi lttc ltuc lubs luci lucs luis luit luli lull lulu lusi luss lust luti luts s-ib s-ic s-ii sbbs sbcc sbcs sbct sbic sbsi sbst sbtc sbus scbi sccc sccl sccs scct sci- scic scil scis scit scl- sclc scls scsc scsi scsl scst scsu sctc sctl scts scub scul scut sibc sibi sibs sibu sicc sici sics sicu siit sil- silc sili sill sils silt silu sisc sisi siss sist sisu sit- sitc siti sits sitt situ siui sius siut sl-i slcc slcu slib slic slit slsc slst slsu slts slub sluc slut sscc ssci sscs ssis ssit sslc sslt sssb sssc sssi ssss sstb sstc sstl ssts stbc stbs stcc stcs stcu stib stic stil stis stit stlc stlt stsi stss sttc stub stuc stul stus stut sub- subb subi subl subs suc- succ suci sucs suis suit sul- sulc suli sull sult sulu sus- susi suss sust susu suti sutu suus tbbs tbcb tbcc tbil tbit tbst tcbs tccc tccu tctc tcts tcul tibi tibs tibu ticc tics tiit tiiu till tils tilt tisb tisi tiss tist titc titi tits titt titu tlli tsbc tscc tsis tssi tsst tstc tsts tsui ttbb ttss tttt ttul tubb tubs tubu tucc tuil tuis tuit tuiu tuli tull tulu tusc tusi tuss tust tuti tutl tuts tutt tutu ubbi ubic ubii ubis ubit ubli ubls ucbc ucci ucil ucsb ucsc ucst ucsu ucut uist uits ulbc ulcc ulic ulli ulti ults ultt ulul ulus usbc usbl usbs uscc uscs usis uslu ussb ussc usss usst ussu ustb ustc usti usts usui usul usus util utis utsc utsl utti uttu uulu uusi uuuu