b-u bbb bbi bbn bbo bbr bbt bbu bi- bib bii bin bio bir bit biu bnb bni bnn bno bnr bnt bnu bob boi bon boo bor bot bou brb bri brn bro brr brt bru btb bti btn bto btr btt btu bub bui bun buo bur but buu ibb ibi ibn ibo ibr ibt ibu iib iii iin iio iir iit iiu in- inb ini inn ino inr int inu io- iob ioi ion ioo ior iot iou ir- irb iri irn iro irr irt iru itb iti itn ito itt itu iu- iub iui iur iut n-i nbb nbi nbn nbo nbr nbt nbu nib nii nin nio nir nit niu nnb nni nnn nno nnt nnu no- nob noi non noo nor not nou nrb nri nrn nro nrr nrt nru ntb nti ntn nto ntr ntt ntu nub nui nun nuo nur nut nuu o-i ob- obb obi obn obo obr obt obu oib oii oin oio oir oit oiu on- onb oni onn ono onr ont onu oo- oob ooi oon ooo oor oot or- orb ori orn oro orr ort oru ot- otb oti otn oto otr ott otu ou- oui oun ouo our out rbb rbi rbn rbo rbr rbt rbu rib rii rin rio rir rit rnb rni rnn rno rnr rnt rnu rob roi ron roo ror rot rou rrb rri rrn rrr rrt rru rtb rti rtn rto rtr rtt rtu rub rui run ruo rur rut ruu tbb tbi tbn tbo tbr tbt tbu tib tii tin tio tir tit tiu tnb tni tnn tno tnr tnt to- tob toi ton too tor tot tou trb tri trn tro trr trt tru ttb tti ttn tto ttr ttt ttu tub tui tun tuo tur tut tuu ubb ubi ubn ubo ubr ubt ubu uib uii uin uio uir uit uiu un- unb uni unn uno unr unt unu uob uon uoo uor uot ur- urb uri urn uro urr urt uru utb uti utn uto utr utt utu uun uur uut uuu

bbbb bbin bibb bibi bibo biin bin- bini binn bino bint binu bio- bioi bion biot biou birb biri birn biro birr birt biru bito bitt bitu bnib bnin bnor bnrr bobb bobi bobo bobu boi- boii boin boit boiu boni bonn bono bont bonu boob boon boor boot bor- bori born boro borr bort boru botb boti botn boto bott boun bour bout brin brio brit brno brob bron broo bror brot brou brrr brun brut btob btor btrt bttb bubb bubi bubo bubu buin buir buit buiu bunb buni bunn buno bunt bunu buon bur- burb buri burn buro burr burt buru but- buti buto butt i-no ibon ibot ibri ibro ibtb iiii iiio iiit iino iioi iioo iitr iitt inbo init inni inno innr innu ino- inoi inon inor inot inou inri inro inti intn into intr intu inui inun iobi ioii ioio ioit ioni ionn iono iooi iooo iori ioto ioun iri- irin irio irob iron irri irti irun itin itno itoi iton itoo itor itou itri itto itur iuiu iuno n-ii nbbo nbti nibi nibo niir niit niiu nini nino nion nioo niou niro nirt niru nitb niti nito nitr niur nnit nnnn nnot nntn nobi nobo nobu noib noin noio noir noit non- noni nonn nono nont nonu noo- noob noon nooo noor noot nor- norb nori norn noro norr nort not- noti noto nott noun nour nout nron ntnu ntru ntto nttr ntui nubi nuin nuit nunn nuno nunt nuon nuri nurn nurr nurt nuru nutt nutu obbo obin obit oboi obon obor obot obri obro oiii oint oion oirt oiti onir onit onni onno onon onor ont- onti onto onur onut oobi oont oooo oort ootb orbb orbi orbo orbu ori- orin orio orit orni orno oro- oron oror orot orri orro orto orub otin otit oto- oton otoo otor otro otti otto ottu otur ouii ouin ouir ouit oun- our- ourn ouro ourt out- outb outi outo ouu- rbbb rbbr rib- ribo ribu riin rinn rino rion riot riou riri riti rito ritt ritu rnbr rnin rnnt rnot rnut rob- robb robi robo robt robu roin roio roir roit roiu roni rono ront roob rooi roon roor root rori roro rort roru roti rotn roto rotr rott roub roun rout rrrr rrun rubb rubi rubu ruin ruit runi runn runo runt ruri ruro ruru ruti ruto rutt rutu ruun tbit tbrb tibi tibu tiit tiiu tini tinn tino tint tinu tion tiou tirb tiri tiro tirr tiru titi tito titt titu tnut tobi tobo tobt tobu toit tonb toni tonn tono tonu toon toor toot tori torn toro torr tort toru toti toto totr tott toui toun tour tout tri- trib trin trio trit trno troi tron troo trot trou trtr trub trun trut truu ttbb tton tttt tubb tubo tubr tubu tuin tuit tuiu tunb tuni tunn tuno tunu tuor turb turi turn turo turr turt turu tuti tuto tutt tutu tuuo ubbi ubbo ubii ubir ubit ubon uint uirr uni- unii unin unio unir unit unni unno unon unro untb unto unut uor- urbi urib urin uriu urni uro- uroo urri urun urur urut utin utor utri utti utto uttu uuni uuno uuri uuuu

bibbo bibin bibio bibri binit binot binub biont birin birni biron birou birun birur bitit biton bitru bitti bitto bitun bnito bo-bo bobbi bobin bobr bobri boiro boito bonin bonio bonon bonou bonut booit boont boorn boort booru borbo borin borio born- borno bornt bornu boro- boron boroo borot borou borro borun borut botin boton botou botro botti bottu botun bouin bouni bouri bourn bouto brini brinn brint brion briot briou brito britt brobo broin broni bronn bront broon broto broun brout brrrr bruin bruit bruiu bruni brunn bruno brunt bruri bruun btr-t btron bubon buirn bunin bunun bunut buono burin burio burn- burnt buron buroo burri burro burru burtt burun burut butin butit butno buto- buton butor butot butou