bbbb bbci bbin bbrc bcbc bccc bcci bcit bcnu bcor bcru bctc bcuc bibb bibi bibo bicc bici bico biin bin- binc bini binn bino bint binu bio- bioc bioi bion biot biou birb biri birn biro birr birt biru bitc bito bitt bitu bnib bnin bnoc bnor bnrr bobb bobi bobo bobu boco bocu boi- boii boin boit boiu bonc boni bonn bono bont bonu boob booc boon boor boot bor- bori born boro borr bort boru botb boti botn boto bott boun bour bout brcb bric brin brio brit brno brob broc bron broo bror brot brou brrr brtc bruc brun brut btcc btob btor btrc btrt bttb bubb bubi bubo bubu bucc buci buco bucu buic buin buir buit buiu bunb buni bunn buno bunt bunu buon bur- burb buri burn buro burr burt buru but- buti buto butt c-bo cbbc cbcc cbcn cbcr cbct cbcu cbir cbit cbot cbrn cbrt cbtc ccbc ccbn cccb cccc ccci cccu ccic ccii ccir ccnb ccnc ccni ccnr ccnu ccob ccoc ccrc ccri ccrt cctb cctc cctt ccuc ccut cibc cibi cibo cicc cici cico cicr cict cicu ciii ciit cin- cinc cini cino cint ciob cion cior cirb circ ciri ciro cirr cirt citb citi cito citt citu ciuc cnbc cnci cnco cnib cnic cnrc cnrr cnrt cntc cntr cnut cobb cobi cobo cobu coco coct cocu coin coir coit con- conc coni conn cono cont coob coon coot cor- corb corc cori corn coro corr cort cotb cotc coti cotn coto cott cotu coub coun cour cout crbc crbu crcc crcr crib cric crin crit criu crob croc cron croo cror crot crrt crtc crub crun crut ctbi ctic ctor ctot ctrc ctrn cttn cub- cubb cubi cucc cuci cucn cui- cuin cuir cuit cuno cunt cuon curb curi curn curo curr curt cut- cutc cuto cutt i-no ibon ibot ibrc ibri ibro ibtb ibtc icbc iccb iccc icci iccn icco iccr icct iccu icnb icnc icoc icon icor icrc icrr icrt icru icub iiii iiio iiit iino iioi iioo iirc iitr iitt iiuc inbo incb inci inco incr init inni inno innr innu ino- inoi inon inor inot inou inri inro inti intn into intr intu inui inun iobi ioci ioii ioio ioit ioni ionn iono iooi iooo iori ioto ioun ircc ircu iri- iric irin irio irob iroc iron irrc irri irti irun itic itin itno itoi iton itoo itor itou itri itto itur iucc iuiu iuno n-ii nbbc nbbo nbcc nbci nbco nbic nbti ncbc ncbi nccc ncci nccn nccr ncct nccu ncit ncnc ncoc ncor ncrc ncri nctc nctr nibi nibo nicc nici nico nicu niir niit niiu nini nino nion nioo niou niro nirt niru nitb nitc niti nito nitr niur nnit nnnn nnot nntn nobc nobi nobo nobu noci noco noct noib noin noio noir noit non- noni nonn nono nont nonu noo- noob noon nooo noor noot nor- norb norc nori norn noro norr nort not- noti noto nott noun nour nout nric nroc nron nrrc ntbc ntcc ntnu ntrc ntru ntto nttr ntuc ntui nubc nubi nuci nucu nuin nuit nunc nunn nuno nunt nuoc nuon nurc nuri nurn nurr nurt nuru nutt nutu obbo obin obit oboi obon obor obot obri obro ocbc occc occi occn occt ocin ocon ocro ocrr oct- octi octo ocur oici oiii oint oion oirt oitc oiti onc- onco onct onic onir onit onni onno onon onor ont- ontc onti onto onur onut oobi oocr oont oooo oort ootb orbb orbi orbo orbu orci orco ori- oric orin orio orit ornc orni orno oro- oron oror orot orri orro ortc orto orub otic otin otit oto- oton otoo otor otro otti otto ottu otur oucc ouii ouin ouir ouit oun- our- ourn ouro ourt out- outb outi outo ouu- rbbb rbbr rcbc rcbo rccb rccc rcic rcnr rcon rctc rcti rib- ribo ribu ricc rico rict riin rinn rino rion riot riou riri riti rito ritt ritu rnbr rnco rnin rnnt rnot rnut rob- robb robi robo robt robu rocc roco roin roio roir roit roiu ronc roni rono ront roob rooi roon roor root rorc rori roro rort roru rotc roti rotn roto rotr rott roub roun rout rrrr rrun rtcc rubb rubi rubu ruci ruct ruin ruit runc runi runn runo runt rurc ruri ruro ruru ruti ruto rutt rutu ruun tbcb tbcc tbit tbrb tccc tccu tcnn tcon tctc tibi tibu ticc tico tiit tiiu tinc tini tinn tino tint tinu tion tiou tirb tiri tiro tirr tiru titc titi tito titt titu tnbc tncc tnut tobi tobo tobt tobu toci toco toit tonb toni tonn tono tonu toon toor toot torc tori torn toro torr tort toru totc toti toto totr tott toui toun tour tout trcc tri- trib tric trin trio trit trno troc troi tron troo trot trou trtc trtr trub truc trun trut truu ttbb ttcn tton tttt tubb tubo tubr tubu tucc tuco tuin tuit tuiu tunb tunc tuni tunn tuno tunu tuor turb turc turi turn turo turr turt turu tuti tuto tutt tutu tuuo ubbi ubbo ubic ubii ubir ubit uboc ubon ucbc ucci ucin ucio ucon ucrc ucut uint uirr uncc unci unco unct uni- unic unii unin unio unir unit unni unno unon unro untb unto unut uocc uor- urbi urci urib uric urin uriu urni uro- uroo urri urun urur urut utin utor utri utti utto uttu uuni uuno uuoc uuri uuuu