b-u bbb bbc bbn bbo bbr bbt bbu bcb bcc bcn bco bcr bct bcu bnb bnc bnn bno bnr bnt bnu bob boc bon boo bor bot bou brb brn bro brr brt bru btb btc btn bto btr btt btu bub buc bun buo bur but buu c-- cbb cbc cbn cbo cbr cbt cbu ccb ccc ccn cco ccr cct ccu cn- cnb cnc cnn cno cnr cnt cnu co- cob coc con coo cor cot cou crb crc crn cro crr crt cru ctb ctc ctn cto ctr ctt ctu cub cuc cun cuo cur cut cuu nbb nbc nbn nbo nbr nbt nbu ncb ncc ncn nco ncr nct ncu nnb nnc nnn nno nnt nnu no- nob noc non noo nor not nou nrb nrc nrn nro nrr nrt nru ntb ntc ntn nto ntr ntt ntu nub nuc nun nuo nur nut nuu ob- obb obc obn obo obr obt obu oc- ocb occ ocn oco ocr oct ocu on- onb onc onn ono onr ont onu oo- oob ooc oon ooo oor oot or- orb orc orn oro orr ort oru ot- otb otc otn oto otr ott otu ou- ouc oun ouo our out rbb rbc rbn rbo rbr rbt rbu rcb rcc rcn rco rcr rct rcu rnb rnc rnn rno rnr rnt rnu rob roc ron roo ror rot rou rrb rrc rrn rrr rrt rru rtb rtc rtn rto rtr rtt rtu rub ruc run ruo rur rut ruu tbb tbc tbn tbo tbr tbt tbu tcb tcc tcn tco tcr tct tcu tnb tnc tnn tno tnr tnt to- tob toc ton too tor tot tou trb trc trn tro trr trt tru ttb ttc ttn tto ttr ttt ttu tub tuc tun tuo tur tut tuu ubb ubc ubn ubo ubr ubt ubu ucb ucc ucn uco ucr uct ucu un- unb unc unn uno unr unt unu uob uoc uon uoo uor uot ur- urb urc urn uro urr urt uru utb utc utn uto utr utt utu uuc uun uur uut uuu

bbbb bbrc bcbc bccc bcnu bcor bcru bctc bcuc bnoc bnor bnrr bobb bobo bobu boco bocu bonc bonn bono bont bonu boob booc boon boor boot bor- born boro borr bort boru botb botn boto bott boun bour bout brcb brno brob broc bron broo bror brot brou brrr brtc bruc brun brut btcc btob btor btrc btrt bttb bubb bubo bubu bucc buco bucu bunb bunn buno bunt bunu buon bur- burb burn buro burr burt buru but- buto butt c-bo cbbc cbcc cbcn cbcr cbct cbcu cbot cbrn cbrt cbtc ccbc ccbn cccb cccc cccu ccnb ccnc ccnr ccnu ccob ccoc ccrc ccrt cctb cctc cctt ccuc ccut cnbc cnco cnrc cnrr cnrt cntc cntr cnut cobb cobo cobu coco coct cocu con- conc conn cono cont coob coon coot cor- corb corc corn coro corr cort cotb cotc cotn coto cott cotu coub coun cour cout crbc crbu crcc crcr crob croc cron croo cror crot crrt crtc crub crun crut ctor ctot ctrc ctrn cttn cub- cubb cucc cucn cuno cunt cuon curb curn curo curr curt cut- cutc cuto cutt nbbc nbbo nbcc nbco ncbc nccc nccn nccr ncct nccu ncnc ncoc ncor ncrc nctc nctr nnnn nnot nntn nobc nobo nobu noco noct non- nonn nono nont nonu noo- noob noon nooo noor noot nor- norb norc norn noro norr nort not- noto nott noun nour nout nroc nron nrrc ntbc ntcc ntnu ntrc ntru ntto nttr ntuc nubc nucu nunc nunn nuno nunt nuoc nuon nurc nurn nurr nurt nuru nutt nutu obbo obon obor obot obro ocbc occc occn occt ocon ocro ocrr oct- octo ocur onc- onco onct onno onon onor ont- ontc onto onur onut oocr oont oooo oort ootb orbb orbo orbu orco ornc orno oro- oron oror orot orro ortc orto orub oto- oton otoo otor otro otto ottu otur oucc oun- our- ourn ouro ourt out- outb outo ouu- rbbb rbbr rcbc rcbo rccb rccc rcnr rcon rctc rnbr rnco rnnt rnot rnut rob- robb robo robt robu rocc roco ronc rono ront roob roon roor root rorc roro rort roru rotc rotn roto rotr rott roub roun rout rrrr rrun rtcc rubb rubu ruct runc runn runo runt rurc ruro ruru ruto rutt rutu ruun tbcb tbcc tbrb tccc tccu tcnn tcon tctc tnbc tncc tnut tobo tobt tobu toco tonb tonn tono tonu toon toor toot torc torn toro torr tort toru totc toto totr tott toun tour tout trcc trno troc tron troo trot trou trtc trtr trub truc trun trut truu ttbb ttcn tton tttt tubb tubo tubr tubu tucc tuco tunb tunc tunn tuno tunu tuor turb turc turn turo turr turt turu tuto tutt tutu tuuo ubbo uboc ubon ucbc ucon ucrc ucut uncc unco unct unno unon unro untb unto unut uocc uor- uro- uroo urun urur urut utor utto uttu uuno uuoc uuuu

bo-bo boboc bobr bocon bocor bonon bonou bonut booco boont boorn boort booru borbo born- borno bornt bornu boro- boron boroo borot borou borro borun borut boton botou botro bottu botun bourn bouto brobo bronc bronn bront broon broto broun brout brrrr brunn bruno brunt bruun btr-t btron bubon bucco bucur bunco bunun bunut buono burcu burn- burnt buron buroo burro burru burtt buruc burun burut butno buto- buton butor butot butou butuo butut c-cor ccccc cnnnn cntrc co-bo co-co cobot cocc- cocco cocon cocto cocur conco concr connu cono- conob conon conor contn conto contr contu corbo corbu corno cornu coro- coron corot corto corun coton cott- cotto cottu couco count courb court couru couto coutu croco croon croot crott croun crout crunt cruor cubo- cubot cubub cunco cunt- cunut cuoco curno curro curto cutco cutcu cutno cuton cutro cutto nnooo no-no nobob nobuo nobut noct- nocto nocut non-u nonno nonot noonu noort norbu norco noroc noron norro nortt norun notno noto- noton notto nourt nrotc