cccc cccl ccee ccel cclc cclx ccrc ccre ccrl ccxl cec- cece ceec ceel cel- celc cele cell cely cer- cerc cere cerl cery cexe ceyl ceyx clec clee cler cley clxx cly- clye crcc crce crcr cre- crec cree crex cry- cxxx cyc- cycc cycl cyl- cylc cyle cyll cyre cyrl cyy- cyyc e-cl eccc ecce eccl ecly ecrc ecrl ecrr eeee eele eely eerc eery elce elec elee eler elex eley elle elly er-x ercc erce erec erel erer erle erll errc erre eryc erye eryx excl exec exel exer exrx exxy eyec eyer eyey eyle eyre eyry eyyr lccc lcce lcer lcrl lece lecy leel leer lele lell lely lerc lere lery lexx lexy leye leyr llcc lllc llll llyr lrrc lrrr lrry lxxx lyc- lyce lyer lyle lyly lyre lyx- rccc rcle rcyc recc rece recr recy reel rele rell rely rere rery rexx reye rlee rrle rrrr ryel ryle xcel xeer xely xer- xexe xxxx xxxy xyl- xyr- yccc ycee yeel yeer yele yell yere yerl yerr yery yeye yeyr ylex ylle yrle yrly yyyy