bbbb bbng bbrc bbrg bcbc bcbg bccc bcnu bcor bcru bctc bcuc bgon bgun bnoc bnor bnrr bobb bobo bobu boco bocu bogg bogo bogt bonc bong bonn bono bont bonu boob booc boog boon boor boot bor- borg born boro borr bort boru botb botn boto bott boun bour bout brcb brno brob broc brog bron broo bror brot brou brrr brtc bruc brug brun brut btcc btob btor btrc btrt bttb bubb bubo bubu bucc buco bucu bugg bugo bunb bung bunn buno bunt bunu buon bur- burb burg burn buro burr burt buru but- buto butt c-bo cbbc cbcc cbcn cbcr cbct cbcu cbgb cbot cbrn cbrt cbtc ccbc ccbn cccb cccc cccu ccgc ccgt ccnb ccnc ccnr ccnu ccob ccoc ccrc ccrg ccrt cctb cctc cctt ccuc ccut cgcc cgcg cgro cgtu cnbc cnco cnrc cnrr cnrt cntc cntr cnut cobb cobo cobu coco coct cocu cogo con- conc cong conn cono cont coob coon coot cor- corb corc corg 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 crug crun crut ctgu ctor ctot ctrc ctrn cttn cub- cubb cucc cucn cuno cunt cuon curb curn curo curr curt cut- cutc cuto cutt gbbo gbon gc-c gcbc gccc gcrg gctc ggbt gggg ggrn gncc gngc gnoo gnrc gnrr gobo gocr gogo gon- gong gonn gono gonu goog goon goor goot gorb gorg gorn goro gorr gort goto gott gou- goug goun gour gout grbr grcc grob groc grog gron groo gror grot grou grrr grtc grub grug grun grur grut gtbr gtco gtcr gubb gubu gugb gugg gugu gung gunn gunt gurb gurg gurn guro gurr gurt guru guto gutt gutu nbbc nbbo nbcc nbco ncbc nccc nccn nccr ncct nccu ncgr ncnc ncoc ncor ncrc nctc nctr ngon ngor ngou ngtn ngur nguu nngn nnnn nnot nntn nobc nobo nobu noco noct nogg nogo nogt non- nong nonn nono nont nonu noo- noob noon nooo noor noot nor- norb norc norg norn noro norr nort not- noto nott noun nour nout nroc nron nrrc ntbc ntcc ntnu ntrc ntru ntto nttr ntuc nubc nucu nunc nung 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 ogb ogog ogon ogou ogro ogun onc- onco onct ongo ongu onno onon onor ont- ontc onto onur onut oocr oont oooo oort ootb orbb orbo orbu orco orgn orgo ornc orno oro- oron oror orot orro ortc orto orub oto- otog oton otoo otor otro otto ottu otur oucc oun- oung our- ourn ouro ourt out- outb outo ouu- rbbb rbbr rcbc rcbo rccb rccc rcgc rcnr rcon rcrg rctc rctg rgtr rnbr rnco rnnt rnot rnut rob- robb robo robt robu rocc roco rogg rogo ronc rong rono ront roob roog roon roor root rorc roro rort roru rotc rotg rotn roto rotr rott roub roun rout rrrr rrun rtcc rtcg rubb rubu ruct rugg runc rung runn runo runt rurc ruro ruru ruto rutt rutu ruun tbcb tbcc tbrb tccc tccu tcnn tcon tctc tgcc tgtc tnbc tncc tnut tobo tobt tobu toco togo togr togt tonb tong tonn tono tonu toon toor toot torc torg torn toro torr tort toru totc toto totr tott toug toun tour tout trcc trng trno troc trog tron troo trot trou trtc trtr trub truc trug trun trut truu ttbb ttcn tton tttt tubb tubo tubr tubu tucc tuco tugg tugu tunb tunc tung tunn tuno tunu tuor turb turc turg turn turo turr turt turu tuto tutt tutu tuuo ubbo uboc ubon ucbc ucon ucrc ucut ugcc ugcg uggo uggt ugro ugur uguu uncc uncg unco unct ungo ungu unno unon unro untb unto unut uocc uor- urgu uro- uroo urun urur urut utor utto uttu utug uuno uuoc uuuu