-ene cccc ccee ccnc ccne cctc cctt cec- cece cect ceec ceke cen- cene cent cet- cete ckck cken cknc cknt cnet cntc cntk ctec cten ctne cttn eccc ecce ecct ecne ect- ectc eeee eeke eent eetc eete ekek eken eket ekne ence enee enke ennc enne ent- ente etcc etec etee eten etne ette ettn kccc kcck kcct kcec kcee kcet kckc kckk kckn kcnt kctc kcte kctn keck keek keen keet kekc keke ken- kene kenk kenn kent ket- ketc kete ketk kett kkck kkcn kkct kken kkkk kkne kknn kknt kktc kktk knce knck kncn knct knec knee knek knen knet knkk knkt knnk knte kntk kntn ktcc ktce ktck ktec ktee ktek kten ktkc ktke ktkk ktkn ktkt ktnc ktne ktnk ktnn ktnt kttc kttk kttn kttt nccc nccn ncct ncec ncee ncen ncnc nctc ncte necc nece neck nect neen neet neke nene nent net- nete nett nknt nnnn nntn ntcc tccc tcnn tctc teck tect teec teek teen teet teke tenc tene tenk tenn tent tete tett tncc ttcn tten tttt