-er c-- ccc cce cck cco ccp ccr cct ce- cec cee cek ceo cep cer cet ckc cko ckt co- coc coe cok coo cop cor cot cpc cpe cpk cpo cpp cpr cpt crc cre crk cro crp crr crt ctc cte ctk cto ctp ctr ctt ec- ecc ece eck eco ecr ect eec eee eek eeo eep eer eet ekc eke eko ekp ekr ekt eo- eoc eoe eok eoo eop eor eot ep- epc epe epo epp epr ept erc ere erk ero erp err ert etc ete etk eto etp etr ett k-t kcc kce kck kcp kcr kct ke- kec kee kek keo kep ker ket kkc kke kkk kkp kkr kkt koc koe kok koo kop kor kot kpc kpe kpk kpo kpp kpr kpt krc krk kro krp krr krt ktc kte ktk kto ktp ktr ktt oc- occ ock oco ocp ocr oct oec oee oeo oep oer oet okc oke okk oko okp okr oo- ooc ook ooo oop oor oot op- opc ope opk opo opp opr opt or- orc ore ork oro orp orr ort ot- otc ote otk oto otp otr ott p-p pcc pce pck pco pcp pcr pct pec pee pek peo pep per pet pkc pke pko pkp pkr pkt poc poe pok poo pop por pot ppc ppe ppk ppo ppp ppr ppt prc pre prk pro prp prr prt pt- ptc pte ptk pto ptp ptr ptt rcc rce rco rcp rcr rct re- rec ree rek reo rep rer ret rkc rke rkk rko rkp rkt roc roe rok roo rop ror rot rpc rpe rpk rpo rpp rpr rpt rrc rrk rrp rrr rrt rtc rte rtk rto rtp rtr rtt tcc tce tck tco tcp tcr tct te- tec tee tek teo tep ter tet tkc tke tkk tko tkp tkr tkt to- toc toe tok too top tor tot tpc tpe tpk tpo tpp tpr tpt trc tre trk tro trp trr trt ttc tte ttk tto ttp ttr ttt

cccc cccp ccee ccoc ccpe ccpp ccpr ccrc ccre ccrp ccrt cctc cctt cec- cece ceco cecp cect ceec ceke ceop ceor cepc cepe cepo cepp cepr cept cer- cerc cere cero cerp cert cet- cete ceto cetp ckck ckco cker ckoc ckoo ckor ckot ckpc ckpr ckrc coce cock coco cocp coct coep cok- coke coko cook coop coot cope copo copp copr copt cor- corc core cork coro corp corr cort cotc cote coto cott cpce cpep cper cpre cprt cptp cptr crcc crce crcr cre- crec cree creo crep cret crkc crkp croc croe crok croo crop cror crot crpc crrt crtc crtp ctcp ctec ctep ctor ctot ctpo ctpp ctrc ctrp eccc ecce ecco ecct ecko eco- ecop ecot ecpp ecrc ecrr ect- ectc ecto eeee eeke eeoc eerc eero eetc eete ekco ekek eker eket ekpe ekpo eore eotc eoto epcc epec epee eper epoc epor epot eppc eppo eppp epro eprp epte ercc erce ercp erec erer eret erke eroc eroe eroo erpe errc erre erro etcc etco etec etee eter etoe etok etre etro ette etto kccc kcck kccr kcct kcec kcee kceo kcep kcet kckc kckk kcko kckr kcoe kcor kcot kcpc kcpo kcpr kcpt kcrc kcro kcrp kcrr kcrt kctc kcte kcto keck keco kecr keek keep keer keet kekc keke keko keok kep- kepc kepe kept ker- kerc kere kerk kero kerp kerr kert ket- ketc kete ketk keto ketp ketr kett kkck kkco kkcr kkct kkkk kkoo kkor kkot kkpc kkpk kkpt kkrc kkre kkrk kkro kkrr kkrt kktc kktk kock kocp koct kokc koke kokk koko kokp kokr kooc kook kooo koop koor koot kope kopp kopr kopt korc kore kork koro korr kort kotc kote kotk koto kotr kott kpcc kpcr kpek kper kpet kpke kpkk kpkr kpoc kpoe kpok kpoo kpop kppc kppk kppo kppp kppr kprc kpre kprk kpro kprp kprr kprt kpte kpto kptr kptt krcc krce krco krec kree krek kreo kret krkc krke krkk krko krkr kroc kroe krok kroo krop kror krpr krpt krrc krre krrk krro krrr krrt krtc krtk krto krtr ktcc ktce ktck ktco ktcr ktec ktee ktek ktep ktkc ktke ktkk ktko ktkr ktkt ktoc ktoe ktok ktoo ktop ktor ktot ktpk ktpo ktpr ktpt ktrc ktre ktrk ktro ktrp ktrr ktrt kttc kttk ktto kttp kttr kttt o-eo occc occt oce ocee ocet ocke ocpp ocre ocro ocrr oct- octe octo oec- oecc oeec oere oker oket okko okok okor okot okpe okpo okre okro okto oocr ooer oooo oore oort ootp opec opep oper opet opo- opor oppo opto orce orco ore- orec orek oreo orer orke orko oro- oroe orok oror orot orpc orpe orro ortc orte orto otee otep oter oto- otoe otok otoo otor otpp otre otro otte otto pccc pcce pcep pcer pcoe pcpp pcrc pcre pcte pece peck peco pecr pect peec peek peep peer peet peke pekk peko peor pepe pepo per- perc pere perk pero perp perr pert pete peto petr pett poce pock poco poer poet poke poko pook poop poor poot pop- popc pope popo popp popt porc pore pork poro porr port potc pote poto pott ppcc pper pppo pppp pprc pptt prcc prcp pre- prec pree prek prep pret pro- proc proe proo prop prot prtc prtp prtr ptcc pter ptop pttc pttk rccc rcep rcet rcpo rcpt rctc recc rece reck recp recr rect reek reep reet reke reko rekt reop reot repe repo repp repr rept rere rero rert rete reto retr rett rocc roce rock roco roer roet roke rokk roko rokr rook roop roor root rope ropo rorc rore rork roro rort rotc rote rotk roto rotr rott rpet rpoe rrrr rtcc rtce rtee rttp tccc tcep tcpo tctc teck teco tecr tect teec teek teer teet teke teok teor tepe tepp ter- terc tere terk tero terp terr tete teto tetr tett toce tock toco toee