-er eee eef eel eer eex ef- efe eff efl efr efx ele elf ell elr elx ere erf erl err ex- exe exl exr exx fee fef fel fer fex ffe fff ffl ffr ffx fle flf fll flr flx fre frf frl frr fxe fxr fxx lee lef lel ler lex lfe lff lfl lfr lfx lle llf lll llr lrf lrr lxr lxx re- ree ref rel rer rex rfe rff rfl rfr rle rlf rll rlr rrf rrl rrr rxr xee xel xer xex xfe xfl xfx xlf xlr xrf xrx xxl xxx

eeee eefe eefl eele elee elef eler elex elfe elle er-x erel erer erfx erle erll erre exel exer exrx feel feer fefe feff fele felf fell fere ferr ffee ffff ffrr flee fler flex free frex leef leel leer lefe leff lele lell lere lexx llef llll lrrr lxxx reef reel refe reff refl refr rele rell rere rexx rfef rffl rlee rlef rrle rrrr xeer xefe xer- xexe xfer xxxx

eeeee eeler efere effer elele ellel eller erere exflr exlex feele feere felle ferel ferle ferr- ferre fleer flere flexe freel freer freex frere leell leere leffe lelex lelle lerer lexer lexxe reefe reere refel refer reffe relee relex rere- reree rexel rexer xexex

efeler effere eleele feeler feller ferfel ferfer ferrel ferrer ferrex freele frefre leelee leerer leffel lexell reefer reeffe reeler refeel refeff refell reflee releef reller rereel xeelee

felfree ferrell ferrere fleerer leffler re-flex referee referer reflexe releefe rerefer xxxxxxx

feelfree fellerer freefell referree referrer

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