cccc cccl cccp ccee ccel cclc cclx ccpe ccpl ccpp ccpr ccrc ccre ccrl ccrp ccxl cec- cece cecp ceec ceel cel- celc cele cell cepc cepe cepp cepr cer- cerc cere cerl cerp cexe clec clee clep cler clpp clpx clxx cpce cpep cper cplc cpre crcc crce crcr cre- crec cree crep crex crpc cxxx e-cl eccc ecce eccl ecpp ecrc ecrl ecrr eeee eele eerc el-p elce elec elee eler elex elle elpe epcc epec epee eper eple epll eppc eppp eprp epxp er-x ercc erce ercp erec erel erer erle erll erpe errc erre excl exec exel exer expr exrx lccc lcce lcer lcpc lcpl lcrl lece leel leep leer lele lell lepe lepp lerc lere lerp lexx llcc lllc llll lpec lppl lprp lrrc lrrr lxxx pccc pcce pccl pcep pcer pcll pcpp pcrc pcre pcrl pece pecl pecr peec peel peep peer pel- pele pell pepe per- perc pere perl perp perr plcc plce ple- plec plee plex plpp ppcc pper pple pppp pprc prcc prcp pre- prec pree prel prep prex prle prlr rccc rcep rcle recc rece recp recr reel reep rele rell relp repe repl repp repr rere rexx rlee rrle rrrr xcel xeer xer- xexe xlpe xpcc xper xrep xxxx