cccc cccp ccee ccoc ccpe ccpp cctc cctt cec- cece ceco cecp cect ceec ceop cepc cepe cepo cepp cept cet- cete ceto cetp coce coco cocp coct coep coop coot cope copo copp copt copy cotc cote coto cott coty coyo coyt cpce cpep cptp ctcp ctec ctep ctot ctpo ctpp cyc- cycc cypc cyt- cyte cyto cyy- cyyc eccc ecce ecco ecct eco- ecop ecot ecpp ect- ectc ecto eeee eeoc eetc eete eotc eoto epcc epec epee epoc epot eppc eppo eppp eppy epte etcc etco etec etee etoe etoy ette etto etty eyec eyet eyey eyot eype eyte o-eo occc occt oce ocee ocet ocpp oct- octe octo octy oec- oecc oeec oeye oeyo oooo ootp ooty opec opep opet opo- oppo oppy opto opye otee otep oto- otoe otoo otoy otpp otte otto oyce oyee pccc pcce pcep pcoe pcpp pcte pece peco pect pecy peec peep peet pepe pepo pete peto pett pety peyo poce poco poet poey poop poot pop- popc pope popo popp popt popy potc pote poto pott poty poyo ppcc pppo pppp pptt ppye ptcc ptop pttc pyce pyep pyet pyo- pyot pype pypy pyte pytt tccc tcep tcpo tcpy tctc teco tect teec teet tepe tepp tete teto tett teye to-y toce toco toee toet toey toot top- tope topo topp topt totc tote toto tott toty toyo toyt tpcp tppp tpte tptp tpyo ttcp tteo ttoe ttop ttoy tttt tyce tyco tyee tyet typ- type typo typp typy tyte tyto tytt tyty yccc ycee yctc yeep yeet yeot yepe yepp yete yeto yett yeye yeyo yoop yoot yopo yopy yote yott yoye yoyo ypcc yyyy