cccc cccp ccee ccoc ccpe ccpp ccpr ccrc ccre ccrp cec- cece ceco cecp ceec ceke ceop ceor cepc cepe cepo cepp cepr cer- cerc cere cero cerp ceze ckck ckco cker ckoc ckoo ckor ckpc ckpr ckrc coce cock coco cocp coep cok- coke coko cook coop cope copo copp copr cor- corc core cork coro corp corr coze cozz cpce cpep cper cpre crcc crce crcr crcz cre- crec cree creo crep crkc crkp croc croe crok croo crop cror croz crpc eccc ecce ecco ecko eco- ecop ecpp ecrc ecrr eeee eeke eeoc eerc eero eeze ekco ekek eker ekpe ekpo eore epcc epec epee eper epoc epor eppc eppo eppp epro eprp ercc erce ercp erec erer erez erke eroc eroe eroo erpe errc erre erro ezek ezer ezop ezzo kccc kcck kccr kcec kcee kceo kcep kcez kckc kckk kcko kckr kckz kcoe kcor kcoz kcpc kcpo kcpr kcrc kcro kcrp kcrr kcrz kcze kczo kczz keck keco kecr keek keep keer kekc keke keko keok kep- kepc kepe ker- kerc kere kerk kero kerp kerr kerz keze kezp kezr kezz kkck kkco kkcr kkez kkkk kkoo kkor kkoz kkpc kkpk kkpz kkrc kkre kkrk kkro kkrr kkrz kkzz kock kocp kokc koke kokk koko kokp kokr kokz kooc kook kooo koop koor kooz kope kopp kopr korc kore kork koro korr koze kozk kozo kozr kpcc kpcr kpek kper kpez kpke kpkk kpkr kpoc kpoe kpok kpoo kpop kppc kppk kppo kppp kppr kprc kpre kprk kpro kprp kprr kprz kpzk krcc krce krco krec kree krek kreo krez krkc krke krkk krko krkr krkz kroc kroe krok kroo krop kror kroz krpr krrc krre krrk krro krrr krrz krze krzk krzr krzz kzcr kzee kzer kzke kzkr kzkz kzoo kzor kzoz kzpk kzpo kzpr kzrc kzrk kzro kzrr kzrz kzzk kzzo kzzp kzzr kzzz o-eo occc oce ocee ocke ocpp ocre ocro ocrr oec- oecc oeec oere oker okko okok okor okpe okpo okre okro oocr ooer oooo oore ooze opec opep oper opo- opor oppo orce orco ore- orec orek oreo orer orke orko oro- oroe orok oror oroz orpc orpe orro orzk orzo ozee ozek ozer pccc pcce pcep pcer pcoe pcpp pcrc pcre pece peck peco pecr pecz peec peek peep peer peke pekk peko peor pepe pepo per- perc pere perk pero perp perr peze pezo poce pock poco poer poke poko pook poop poor pop- popc pope popo popp porc pore pork poro porr porz poze pozo ppcc pper pppo pppp pprc prcc prcp pre- prec pree prek prep prez pro- proc proe proo prop proz rccc rcep rcpo recc rece reck recp recr recz reek reep reke reko reop repe repo repp repr rere rero reze rocc roce rock roco roer roke rokk roko rokr rook roop roor rooz rope ropo rorc rore rork roro roze rozz rpoe rrrr z-ro zeck zeek zeep zeke zeko zekr zepo zepp zerk zero zeze zoco zoke zoo- zook zoop zope zorc zore zork zoro zozo zrce zrze zzzz