b-u bbb bbc bbn bbo bbs bbt bbu bcb bcc bcn bco bcs bct bcu bnb bnc bnn bno bns bnt bnu bob boc bon boo bos bot bou bsb bsc bsn bso bss bst bsu btb btc btn bto bts btt btu bub buc bun buo bus but buu c-- cbb cbc cbn cbo cbs cbt cbu ccb ccc ccn cco ccs cct ccu cn- cnb cnc cnn cno cns cnt cnu co- cob coc con coo cos cot cou csb csc csn cso css cst csu ctb ctc ctn cto cts ctt ctu cub cuc cun cuo cus cut cuu nbb nbc nbn nbo nbs nbt nbu ncb ncc ncn nco ncs nct ncu nnb nnc nnn nno nns nnt nnu no- nob noc non noo nos not nou nsb nsc nsn nso nss nst nsu ntb ntc ntn nto nts ntt ntu nub nuc nun nuo nus nut nuu ob- obb obc obn obo obs obt obu oc- ocb occ ocn oco ocs oct ocu on- onb onc onn ono ons ont onu oo- oob ooc oon ooo oos oot os- osb osc osn oso oss ost osu ot- otb otc otn oto ots ott otu ou- ouc oun ouo ous out sbb sbc sbn sbo sbs sbt sbu scb scc scn sco scs sct scu snb snc snn sno sns snt snu sob soc son soo sos sot sou ss- ssb ssc ssn sso sss sst ssu stb stc stn sto sts stt stu sub suc sun suo sus sut suu tbb tbc tbn tbo tbs tbt tbu tcb tcc tcn tco tcs tct tcu tnb tnc tnn tno tns tnt to- tob toc ton too tos tot tou tsb tsc tsn tso tss tst tsu ttb ttc ttn tto tts ttt ttu tub tuc tun tuo tus tut tuu ubb ubc ubn ubo ubs ubt ubu ucb ucc ucn uco ucs uct ucu un- unb unc unn uno uns unt unu uob uoc uon uoo uos uot usb usc usn uso uss ust usu utb utc utn uto uts utt utu uuc uun uus uut uuu

-ous bbbb bbbs bcbc bcbs bccc bccs bcnu bcos bcsc bcsn bcss bctc bcts bcuc bnoc bnss bobb bobo bobs bobu boco bocs bocu bonc bonn bono bons bont bonu boob booc boon boos boot bosc bosn boso boss bost bosu botb botn boto bots bott boun bous bout bscs bsns bson bsos bssc bsts btcc btcs btob btss bttb btus bubb bubo bubs bubu bucc buco bucs bucu bunb bunn buno buns bunt bunu buon busc buss bust busu but- buto buts butt buus c-bo cbbc cbbs cbcc cbcn cbcs cbct cbcu cbot cbsc cbsn cbtc cbus ccbc ccbn cccb cccc cccs cccu ccnb ccnc ccns ccnu ccob ccoc ccsn ccss ccst cctb cctc cctt ccuc ccus ccut cnbc cnco cnss cntc cnut cobb cobo cobs cobu coco coct cocu con- conc conn cono cons cont coob coon coos coot cosc coso coss cost cotb cotc cotn coto cots cott cotu coub coun cous cout cscb cscc csco cscs csob csos csot cstc csto csts csus ctbs ctns ctos ctot ctsc ctsn ctss ctsu cttn ctts cub- cubb cubs cucc cucn cuno cunt cuon cusb cuso cuss cust cusu cut- cutc cuto cuts cutt nbbc nbbo nbcc nbco nbcs ncbc ncbs nccc nccn nccs ncct nccu ncnc ncoc ncos ncsc ncss ncst nctc nnnn nnos nnot nnss nntn nobc nobo nobs nobu noco nocs noct non- nonn nono nons nont nonu noo- noob noon nooo noos noot nos- noss nost nosu not- noto nots nott noun nous nout nsbo nscc nscs nsos nsou nssb nssc nsso nsss nstc nsts nstu nsub ntbc ntcc ntnu ntsb ntsc ntss ntsu ntto ntuc nubc nubs nucs nucu nunc nunn nuno nuns nunt nuoc nuon nuss nust nusu nuts nutt nutu obbo obon obos obot obsn obss obst obts obus ocbc occc occn occt ocon ocos oct- octo octs onc- onco onct onno onon onos onsc onso onst ont- ontc onto onus onut oons oont oooo ooos oost ootb oots oous oscc osco osno osoo osos ossb osso ossu ostc osts osun otbs oto- oton otoo otos otso otsu otto otts ottu otus oubs oucc oun- oust out- outb outo outs ouu- s-os sbbs sbcc sbcs sbct sbot sbst sbtc sbtn sbus sccc sccs scct scnt scob scon scoo scot scsc scsn scso scst scsu sctc sctn scto scts scub scun scut sncc snco snns snob snoc snoo snos snot snub snus sobo sobs sobt sobu soco socs son- sono sons sont sonu soon soos soot soso soss sost sotc sotn soto sots sotu soun sous sout ssbn sscc sscs ssns ssoc ssot sssb sssc ssss sstb sstc ssts stbc stbs stcc stcs stcu stnn stns stob ston stoo stos stot stou stss sttc stub stuc stun stus stut sub- subb subo subs suc- succ sucs sun- sunb sunn suno suns sunt sunu suos sus- suso suss sust susu suto sutu suus tbbs tbcb tbcc tbst tcbs tccc tccu tcnn tcon tcos tctc tcts tnbc tncc tnts tnut tobo tobs tobt tobu toco tonb tonn tono tons tonu toon toos toot tosb tosc toso toss tost tosu totc toto tots tott toun tous tout tsbc tscc tsob tsos tsou tsst tstc tsts tsun ttbb ttcn tton ttss tttt tubb tubo tubs tubu tucc tuco tunb tunc tunn tuno tuns tunu tuos tusc tuss tust tuto tuts tutt tutu tuuo ubbo uboc ubon ubos ucbc ucon ucos ucsb ucsc ucst ucsu ucut uncc unco uncs unct unno unns unon unos uns- unsc unso unst untb unto unts unus unut uocc usbc usbs uscc usco uscs usnc usno usnu usoc usos ussb ussc usss usst ussu ustb ustc usto usts usun usus utsc utto uttu uuno uuoc uuuu

bbuss bcbst bo-bo boboc bobos bobst bobts bocon bocus bonon bonos bonou bonsu bonus bonut boobs booco boons boont boost boots bosco boscs bosns boson bosso bosun bosut boton botos botou botts bottu botun botus boust