-ene -yne cccc cccf ccee ccfc ccff cche cchr cchy ccnc ccne ccnf ccnr ccny ccrc ccre ccrf cec- cece ceec cef- cefc cefn cen- cene ceny cer- cerc cere cerf cern cery cfcf cfcn cfcy cffr cfnr cfre cfrn cfry cfyn chce chch chec chee chef cheh chen cher chey chfc chfr chnc chnr chrc chrf chrn chrr chy- chyc chyn cnrc cnrr crcc crce crcr cre- crec cree creh cren crfc crne cry- cryn cyc- cycc cyen cyfe cyfh cyn- cyne cyre cyy- cyyc cyyn eccc ecce ecef ecfc ecfr eche ecne ecrc ecrf ecrr eeee eefe eefn eeny eerc eery efen effy ehcc eheh ehen eher ehre ence ench ency enee ener eney ennc enne enny enry enye ercc erce erch erec eren erer erfc erhc erne errc erre eryc erye eyec eyen eyer eyey eyne eyre eyry eyyr fccf fcch fece fech feen feer fefc fefe feff fehr fene fenn feny ferc fere fern ferr fery feyn feyr ffcc ffee ffff ffrr frcc frcn free fren frey frfc frye fyce fych fyen fyfe fyne fynn fyre fyry hccc hcch hcfc hech heef heer hefe hehe hehn hene henh henn herc here hern herr hery heye heyf heyh heyn heyr hfce hhhh hnce hnny hree hrfc hrrc hyce hyen hyer hyfr hyhe hyne hyre nccc nccf nccn nccr ncec ncee ncef ncen ncer ncfc ncfe nchc ncnc ncrc ncre necc nece nech necr necy neef neen neer nefe neff nefh nehe nene nenh nerc nere nerf nerr nery neye neyf neyh neyn nfer nfff nfyc nhcc nhnn nhrc nnnn nren nrfc nrrc nycc nyce nycy nyen nyer nyhe nyne nyny nyrf rccc rcfc rcnr rcyc recc rece rech recr recy reef reen refe reff refn refr rehe rehn rene renn reny rere rery reye reyn rfef rffc rhce rhee rhen rhye rrfc rrrr rych ryeh ryen ryfe ryff ryne rynn ryyf yccc ycch ycee yche yech yeen yeer yefe yeff yehe yehr yenc yene yere yern yerr yery yeye yeyr yhen yher ynce ynch ynne yren yrne yryn yyfe yyff yyyy