-ol b-u bbb bbc bbd bbl bbn bbo bbs bbu bcb bcc bcd bcl bcn bco bcs bcu bdb bdc bdd bdl bdo bds bdu blb blc bld bll bln blo bls blu bnb bnc bnd bnl bnn bno bns bnu bob boc bod bol bon boo bos bou bsb bsc bsd bsl bsn bso bss bsu bub buc bud bul bun buo bus buu c-- cbb cbc cbd cbl cbn cbo cbs cbu ccb ccc ccd ccl ccn cco ccs ccu cdb cdc cdd cdl cdn cdo cds cdu cl- clb clc cld cll cln clo cls clu cn- cnb cnc cnd cnl cnn cno cns cnu co- cob coc cod col con coo cos cou csb csc csd csl csn cso css csu cub cuc cud cul cun cuo cus cuu dbb dbc dbd dbl dbn dbo dbs dbu dcb dcc dcd dcl dcn dco dcs dcu ddb ddc ddd ddl ddn ddo dds ddu dl- dlb dlc dld dll dlo dls dlu dnb dnc dnd dnl dnn dno dns dob doc dod dol don doo dos dou dsb dsc dsd dsl dsn dso dss dsu dub duc dud dul dun duo dus lbb lbc lbd lbl lbo lbs lbu lcb lcc lcd lcl lcn lco lcs lcu ldb ldc ldd ldl ldn ldo lds ldu llb llc lld lll lln llo lls llu lnb lnc lnd lnl lnn lno lns lnu lob loc lod lol lon loo los lou lsb lsc lsd lsl lsn lso lss lsu lub luc lud lul lun luo lus luu nbb nbc nbd nbl nbn nbo nbs nbu ncb ncc ncd ncl ncn nco ncs ncu ndb ndc ndd ndl ndn ndo nds ndu nlb nlc nld nll nln nlo nls nlu nnb nnc nnl nnn nno nns nnu no- nob noc nod nol non noo nos nou nsb nsc nsd nsl nsn nso nss nsu nub nuc nud nul nun nuo nus nuu ob- obb obc obd obl obn obo obs obu oc- ocb occ ocd ocl ocn oco ocs ocu odb odc odd odl odn odo ods odu olb olc old oll oln olo ols olu on- onb onc ond onl onn ono ons onu oo- oob ooc ood ool oon ooo oos os- osb osc osd osl osn oso oss osu ou- ouc oud oul oun ouo ous sbb sbc sbd sbl sbn sbo sbs sbu scb scc scd scl scn sco scs scu sdb sdc sdd sdl sdn sdo sds sdu slb slc sld sll sln slo sls slu snb snc snd snl snn sno sns snu sob soc sod sol son soo sos sou ss- ssb ssc ssd ssl ssn sso sss ssu sub suc sud sul sun suo sus suu ubb ubc ubl ubn ubo ubs ubu ucb ucc ucd ucl ucn uco ucs ucu udb udc udd udl udn udo uds udu ulb ulc uld ull uln ulo uls ulu un- unb unc und unl unn uno uns unu uob uoc uod uol uon uoo uos usb usc usd usl usn uso uss usu uuc uun uus uuu

-ous bbbb bbbs bbdd bbdo bblb bbls bcbc bcbs bccc bccl bccs bcds bcnu bcos bcsc bcsl bcsn bcss bcuc bdbc bddc bdls bdos bdsd blcu bldc blls blno blob bloc blod blon bloo blou blss blub blud blus bnoc bnss bobb bobo bobs bobu boco bocs bocu bodb bodo bods bodu bold boll boln bolo bols bolu bonc bond bonn bono bons bonu boob booc bood bool boon boos bosc bosn boso boss bosu boud boul boun bous bsbd bscs bsdl bslc bsnd bsns bsod bson bsos bssc bssd bubb bubo bubs bubu bucc buco bucs bucu budb budd budl budo buds budu bulb buld bull buls bulu bunb bund bunn buno buns bunu buol buon busc buss busu buus c-bo c-cd cbbc cbbs cbcc cbcl cbcn cbcs cbcu cbdb cbdc cbdn cbdo cbds cblb cblc cbln cbnd cbol cbsc cbsn cbus ccbc ccbn cccb cccc cccl cccs cccu ccdc ccdn ccds cclc ccls ccnb ccnc ccns ccnu ccob ccoc ccod ccsd ccsl ccsn ccss ccuc ccus cdcs cddb cddl cdls cdnb cdnc cdon cdos cdss clcd cldc clob clod clon cloo clos clou clsc club clud clun cnbc cnbl cnco cndd cnsl cnss cobb cobo cobs cobu coco cocu codd codl cods col- colb cold coll coln colo cols colu con- conc cond conn cono cons coob cood cool coon coos cosc cosl coso coss coub coud coul coun cous cscb cscc cscd cscl csco cscs csdb csdn csld cslu csob csos cssd csus cub- cubb cubs cucc cucn cuds culb culc culd cull culo culs cund cuno cuon cusb cusd cuso cuss cusu d-bo dbcc dbcs dbls dbnl dbos dbss dbus dcbc dccb dccc dccl dccs dccu dcdb dcds dcls dcns dcon dcos dcsc dcss dddd ddlc ddoc ddss ddub dlbd dlco dlcs dlos dncs dnoc dnsc dnus dobb dobl dobs dobu doco docs docu dod- dodd dodo dods dold doll dolo dols dolu donc dond donn dono dons doob dood dool doon doos doso doss doub douc doud doul doun dous dsbc dscc dscn dscs dsls dsos dssc dssn dub- dubb dubc dubs dubu duco ducs dudd dudo duds dudu dulc dull dulo dulu dunc dunn duno duns duo- duon duos duul lbcc lbds lbos lbsc lcbc lccc lccs lcdd lcds lcls lcsc lcsd ldls ldos llbs llcc llcs lldb lldc llds lllc llll lloc llod lloo llud lndn lnso lob- lobb lobo lobs locc locn loco locs locu lods lold loll lolo lols lond lono lons loob looc lood lool loon loos losc loso loss loud loul loun lous louu lsbu lscb lsco lscs lsds lson lsso lubs lucs ludd ludo lull lulu lund lunn luno luns luso luss nbbc nbbo nbcc nbco nbcs ncbc ncbs nccc nccn nccs nccu ncdc ncdn ncds ncdu nclc ncln ncnc ncnd ncoc ncos ncsc ncsl ncss ndcc ndcs nddb nddo ndls ndoc ndos ndsl ndss nlcc nlcs nlls nlsc nndb nnls nnnn nnos nnsl nnss