b-u bbb bbc bbn bbo bbr bbu bcb bcc bcn bco bcr bcu bnb bnc bnn bno bnr bnu bob boc bon boo bor bou brb brn bro brr bru bub buc bun buo bur buu c-- cbb cbc cbn cbo cbr cbu ccb ccc ccn cco ccr ccu cn- cnb cnc cnn cno cnr cnu co- cob coc con coo cor cou crb crc crn cro crr cru cub cuc cun cuo cur cuu nbb nbc nbn nbo nbr nbu ncb ncc ncn nco ncr ncu nnb nnc nnn nno nnu no- nob noc non noo nor nou nrb nrc nrn nro nrr nru nub nuc nun nuo nur nuu ob- obb obc obn obo obr obu oc- ocb occ ocn oco ocr ocu on- onb onc onn ono onr onu oo- oob ooc oon ooo oor or- orb orc orn oro orr oru ou- ouc oun ouo our rbb rbc rbn rbo rbr rbu rcb rcc rcn rco rcr rcu rnb rnc rnn rno rnr rnu rob roc ron roo ror rou rrb rrc rrn rrr rru rub ruc run ruo rur ruu ubb ubc ubn ubo ubr ubu ucb ucc ucn uco ucr ucu un- unb unc unn uno unr unu uob uoc uon uoo uor ur- urb urc urn uro urr uru uuc uun uur uuu

bbbb bbrc bcbc bccc bcnu bcor bcru bcuc bnoc bnor bnrr bobb bobo bobu boco bocu bonc bonn bono bonu boob booc boon boor bor- born boro borr boru boun bour brcb brno brob broc bron broo bror brou brrr bruc brun bubb bubo bubu bucc buco bucu bunb bunn buno bunu buon bur- burb burn buro burr buru c-bo cbbc cbcc cbcn cbcr cbcu cbrn ccbc ccbn cccb cccc cccu ccnb ccnc ccnr ccnu ccob ccoc ccrc ccuc cnbc cnco cnrc cnrr cobb cobo cobu coco cocu con- conc conn cono coob coon cor- corb corc corn coro corr coub coun cour crbc crbu crcc crcr crob croc cron croo cror crub crun cub- cubb cucc cucn cuno cuon curb curn curo curr nbbc nbbo nbcc nbco ncbc nccc nccn nccr nccu ncnc ncoc ncor ncrc nnnn nobc nobo nobu noco non- nonn nono nonu noo- noob noon nooo noor nor- norb norc norn noro norr noun nour nroc nron nrrc nubc nucu nunc nunn nuno nuoc nuon nurc nurn nurr nuru obbo obon obor obro ocbc occc occn ocon ocro ocrr ocur onc- onco onno onon onor onur oocr oooo orbb orbo orbu orco ornc orno oro- oron oror orro orub oucc oun- our- ourn ouro ouu- rbbb rbbr rcbc rcbo rccb rccc rcnr rcon rnbr rnco rob- robb robo robu rocc roco ronc rono roob roon roor rorc roro roru roub roun rrrr rrun rubb rubu runc runn runo rurc ruro ruru ruun ubbo uboc ubon ucbc ucon ucrc uncc unco unno unon unro uocc uor- uro- uroo urun urur uuno uuoc uuuu

bo-bo boboc bobr bocon bocor bonon bonou booco boorn booru borbo born- borno bornu boro- boron boroo borou borro borun bourn brobo bronc bronn broon broun brrrr brunn bruno bruun bubon bucco bucur bunco bunun buono burcu burn- buron buroo burro burru buruc burun c-cor ccccc cnnnn co-bo co-co cocc- cocco cocon cocur conco concr connu cono- conob conon conor corbo corbu corno cornu coro- coron corun couco courb couru croco croon croun cruor cubo- cubub cunco cuoco curno curro nnooo no-no nobob nobuo non-u nonno noonu norbu norco noroc noron norro norun nu-nu nucor nunon nunun nuoro nurun o-bon o-r-b oboro occur ocorn ocr-b onco- onnbc onoon onorn onour ooooo orcon ornon orobo oroco orono oruro ouoro ourno r-co- ro-ro robbo robo- robon robor robun robur rocco rocor rocou ronco ronno rorbu rubon rubor runcu runo- runon u-con ubobo uconn uncon uncor unnun unnur unoor unorn unrun unurn uroob urour urubu urucu uuuuu

bbbbbb bobrun boccob bocono bonbon bonnor bonobo booboo borbon borbor bornon bororo boubou boucon bounou bourou brocco brocor bronco bronno brubru bruron buborn bububu bucco- burbur burnou cobbob coborn cocco- cococo cocoon concon concur connon connor conoco coocoo corbon cornon coroun corour coruco coruro coubon courbu courr- crocco cronon cruro- cucurb curour curror cururo noboru non-no noncon nonono nonoon noonoo noonor nounou occour oncorn oooooo orccon orrour ouroun rococo ronnon ronron roucou rounou rubbon rubro- run-on ruocco ucuncu unborn unburn uncorn uncurb

bbbbbbb bon-bon boo-boo bornuur bourbon bourrou bruncor buccoon cooccur coonoor corboun corncob corono- corrour cou-cou coubron courcon cournon cucuron non-con nonburn norrbro oconnor oroboro oronoco rbubnon rococco rubbour runcorn ububboo

bbbbbbbb bo-bo-bo boconnoc bonobono broubrou buruburu burunucu co-occur coconuco cocoroco corn-cob corocoro cucurucu curucucu nocoroco nonboron nononono ubbubboo

borborbor coucouron couroucou nonconcur nunorco ouroubono roocoocoo runrunrun

bonnbonbon bonobonono non-concur rococococo

bonbonbooboo

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