cccc ccgc ccgt ccnc ccoc cctc cctt cgcc cgcg chch chgn chnc chno choc choh chon choo chto chtt cnco cnoh cntc coch coco coct cogh cogo cohn coho con- conc cong conn cono cont cooh coon coot cotc coth cotn coto cott ctot cttn gc-c gccc gctc gggg gghg ghon gncc gngc gnoo goch gogh gogo gon- gong gonn gono goog goon goot goth goto gott gtco hccc hcch hcgh hcng hggc hgtc hhgg hhhh hoch hocn hogg hogh hogo hohn hoho hong hono hont hoon hoot hoth hoto hott htcc htoh nccc nccn ncct nchc ncnc ncoc nctc ngon ngtn nhcc nhnn nhon nngn nnnn nnot nntn noch noco noct nogg nogh nogo nogt nohn noho noht non- nong nonn nono nont noo- noon nooo noot not- noth noto nott ntcc nthn ntht ntto occc occn occt ocht ocon oct- octo oght ogog ogon ohcc ohho ohno ohoh ohto onc- onco onct ongo onno onon ont- ontc onto ooho oont oooh oooo otho oto- otog otoh oton otoo otto tccc tch- tchh tcho tcnn tcon tctc tgcc tgtc thch thnt thog thon thoo thot tncc toch toco togh togo togt toho tong tonh tonn tono tooh toon toot totc toth toto tott ttcn tton tttt