cccc cccl cccp ccee ccel cclc ccpe ccpl ccpp ccpr ccrc ccre ccrl ccrp ccrt cctc cctl cctt cec- cece cecp cect ceec ceel cel- celc cele cell celt cepc cepe cepp cepr cept cer- cerc cere cerl cerp cert cet- cete cetp clec clee clep cler clet clpp cltc cpce cpep cper cplc cpre cprt cptp cptr crcc crce crcr cre- crec cree crep cret crpc crrt crtc crtl crtp ctcp ctec ctep ctle ctpp ctrc ctrl ctrp e-cl eccc ecce eccl ecct eclt ecpp ecrc ecrl ecrr ect- ectc eeee eele eerc eetc eete el-p elce elec elee eler elet elle elpe elte epcc epec epee eper eple epll eppc eppp eprp epte ercc erce ercp erec erel erer eret erle erll erpe errc erre ertl etcc etec etee etel eter etre ette lccc lcce lcer lcpc lcpl lcrl lctl lece lect leel leep leer leet lele lell lepe lepp lept lerc lere lerp lert lete lett llcc llet lllc llll lpec lppl lprp lrrc lrrr ltcc ltee lttc lttr pccc pcce pccl pcep pcer pcll pcpp pcrc pcre pcrl pcte pece pecl pecr pect peec peel peep peer peet pel- pele pell pelt pepe per- perc pere perl perp perr pert pete petr pett plcc plce ple- plec plee plet plpp pltt ppcc pper pple pppp pprc pptt prcc prcp pre- prec pree prel prep pret prle prlr prtc prtp prtr ptcc ptcl pter pttc rccc rcep rcet rcle rcpt rctc recc rece recp recr rect reel reep reet rele rell relp relt repe repl repp repr rept rere rert rete retr rett rlee rpet rrle rrrr rtcc rtce rtee rtle rtlt rttp tccc tcep tctc tecl tecr tect teec teel teer teet tel- telc tele tell telt tepe tepp ter- terc tere terp terr tete tetr tett tpcp tper tppp tppr tpte tptp tptr trcc trcl tre- trec tree tret trpc trpe trpp trtc trte trtr ttcp tter tttt