-ing bbbb bbci bbin bbng bcbc bcbg bccc bcci bcit bctc bgon bibb bibi bibo bicc bicg bici bico bigb bigc bigg bign bigo bigt biin bin- binc bing bini binn bino bint bio- bioc biog bioi bion biot bitc bito bitt bnib bnin bnoc bobb bobi bobo boco bogg bogi bogo bogt boi- boii boin boit bonc bong boni bonn bono bont boob booc boog boon boot botb boti botn boto bott btcc btob bttb c-bo cbbc cbcc cbcn cbct cbgb cbit cbot cbtc ccbc ccbn cccb cccc ccci ccgc ccgt ccic ccii ccnb ccnc ccni ccob ccoc cctb cctc cctt cgcc cgcg cibc cibi cibo cicc cici cico cict cigi ciii ciit cin- cinc cing cini cino cint ciob cion citb citg citi cito citt cnbc cnci cnco cngi cnib cnic cntc cobb cobi cobo coco coct cogi cogo coin coit con- conc cong coni conn cono cont coob coon coot cotb cotc coti cotn coto cott ctbi ctic ctot cttn gbbo gbon gc-c gcbc gccc gcic gcii gctc ggbt gggg gibb gigg gigi gign gigo ging gini ginn gino giog gioi gion gito gncc gngc gnib gnin gnit gnoo gnti gobi gobo gogi gogo goin goit gon- gong goni gonn gono goog gooi goon goot goti goto gott gtco i-go i-no ibon ibot ibtb ibtc icbc iccb iccc icci iccn icco icct icgc icnb icnc icoc icon igbc igbo igcc igni igno igon igoo igot iiii iiio iiit iino iioi iioo iitt inbo incb inci inco ingo inig init inni inno ino- inoi inon inot intg inti intn into iobi iocg ioci iogt ioii ioio ioit ioni ionn iono iooi iooo ioto itgc itgo itic itin itno itoi iton itoo itto n-ii nbbc nbbo nbcc nbci nbco nbic nbti ncbc ncbi nccc ncci nccn ncct ncit ncnc ncoc nctc ngic ngio ngon ngtn nibi nibo nicc nici nico nigc nigg nigo nigt niit ning nini nino niog nion nioo nitb nitc niti nito nngn nnit nnnn nnot nntn nobc nobi nobo noci noco noct nogg nogo nogt noib noin noio noit non- nong noni nonn nono nont noo- noob noon nooo noot not- noti noto nott ntbc ntcc ntto obbo obin obit oboi obon obot ocbc occc occi occn occt ocin ocon oct- octi octo ogb oggi ogin ogni ogog ogoi ogon oici oigo oiii oint oion oitc oiti onc- onco onct ongi ongo onic onit onni onno onon ont- ontc onti onto oobi oont oooo ootb otic otin otit oto- otog oton otoo otti otto tbcb tbcc tbit tccc tcnn tcon tctc tgcc tgtc tibi ticc tico tigi tiit tinc ting tini tinn tino tint tion titc titi tito titt tnbc tncc tobi tobo tobt toci toco togo togt toit tonb tong toni tonn tono toon toot totc toti toto tott ttbb ttcn tton tttt