b-u bbb bbn bbo bbr bbu bnb bnn bno bnr bnu bob bon boo bor bou brb brn bro brr bru bub bun buo bur buu nbb nbn nbo nbr nbu nnb nnn nno nnu no- nob non noo nor nou nrb nrn nro nrr nru nub nun nuo nur nuu ob- obb obn obo obr obu on- onb onn ono onr onu oo- oob oon ooo oor or- orb orn oro orr oru ou- oun ouo our rbb rbn rbo rbr rbu rnb rnn rno rnr rnu rob ron roo ror rou rrb rrn rrr rru rub run ruo rur ruu ubb ubn ubo ubr ubu un- unb unn uno unr unu uob uon uoo uor ur- urb urn uro urr uru uun uur uuu

bbbb bnor bnrr bobb bobo bobu bonn bono bonu boob boon boor bor- born boro borr boru boun bour brno brob bron broo bror brou brrr brun bubb bubo bubu bunb bunn buno bunu buon bur- burb burn buro burr buru nbbo nnnn nobo nobu non- nonn nono nonu noo- noob noon nooo noor nor- norb norn noro norr noun nour nron nunn nuno nuon nurn nurr nuru obbo obon obor obro onno onon onor onur oooo orbb orbo orbu orno oro- oron oror orro orub oun- our- ourn ouro ouu- rbbb rbbr rnbr rob- robb robo robu rono roob roon roor roro roru roub roun rrrr rrun rubb rubu runn runo ruro ruru ruun ubbo ubon unno unon unro uor- uro- uroo urun urur uuno uuuu

bo-bo bobr bonon bonou boorn booru borbo born- borno bornu boro- boron boroo borou borro borun bourn brobo bronn broon broun brrrr brunn bruno bruun bubon bunun buono burn- buron buroo burro burru burun nnooo no-no nobob nobuo non-u nonno noonu norbu noron norro norun nu-nu nunon nunun nuoro nurun o-bon o-r-b oboro onoon onorn onour ooooo ornon orobo orono oruro ouoro ourno ro-ro robbo robo- robon robor robun robur ronno rorbu rubon rubor runo- runon ubobo unnun unnur unoor unorn unrun unurn uroob urour urubu uuuuu

bbbbbb bobrun bonbon bonnor bonobo booboo borbon borbor bornon bororo boubou bounou bourou bronno brubru bruron buborn bububu burbur burnou noboru non-no nonono nonoon noonoo noonor nounou oooooo orrour ouroun ronnon ronron rounou rubbon rubro- run-on unborn unburn

bbbbbbb bon-bon boo-boo bornuur bourbon bourrou nonburn norrbro oroboro rubbour ububboo

bbbbbbbb bo-bo-bo bonobono broubrou buruburu nonboron nononono ubbubboo

borborbor ouroubono runrunrun

bonnbonbon bonobonono

bonbonbooboo

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