cccc cchr ccnc ccnr ccoc ccrc ccrt cctc cctt chch chnc chno chnr choc choh chon choo chor chrc chrn chro chrr chrt chto chtr chtt cnco cnoh cnrc cnrr cnrt cntc cntr coch coco coct cohn coho con- conc conn cono cont cooh coon coot cor- corc corn coro corr cort cotc coth cotn coto cott crcc crcr croc croh cron croo cror crot crrt crtc ctor ctot ctrc ctrn cttn hccc hcch hhhh hntr hoch hocn hocr hohn hoho hono hont hoon hoor hoot horc horn horo horr hort hoth hoto hotr hott hron hrrc htcc htoh httr nccc nccn nccr ncct nchc ncnc ncoc ncor ncrc nctc nctr nhcc nhnn nhon nhrc nnnn nnot nntn noch noco noct nohn noho noht non- nonn nono nont noo- noon nooo noor noot nor- norc norn noro norr nort not- noth noto nott nroc nron nrrc ntcc nthn ntht ntrc ntto nttr occc occn occt ocht ocon ocro ocrr oct- octo ohcc ohho ohno ohoh ohrn ohto onc- onco onct onno onon onor ont- ontc onto oocr ooho oont oooh oooo oort orch orco ornc orno oro- oron oror orot orro ortc orth orto otho othr oto- otoh oton otoo otor otro otto rccc rcnr rcon rctc rhoc rhoh rhon rnco rnnt rnot rocc roch roco rohn rohr ronc rono ront roon roor root rorc roro rort rotc roth rotn roto rotr rott rrrr rtcc tccc tch- tchh tcho tchr tcnn tcon tctc thch thnt thon thoo thor thot thro thtr tncc toch toco toho tonh tonn tono tooh toon toor toot torc torn toro torr tort totc toth toto totr tott trcc trno troc tron troo trot trtc trtr ttcn tton tttt