-er eee eef eer eet eex ef- efe eff efr eft efx ere erf err ert ete etf etr ett etx ex- exe exr ext exx fee fef fer fet fex ffe fff ffr fft ffx fre frf frr frt fte ftf ftr ftt ftx fxe fxr fxt fxx re- ree ref rer ret rex rfe rff rfr rft rrf rrr rrt rte rtf rtr rtt rtx rxr t-x te- tee tef ter tet tex tfe tff tfr tft tfx tre trf trr trt trx tte ttf ttr ttt ttx txe txf txt xee xer xet xex xfe xft xfx xrf xrt xrx xtf xtr xtx xxx

eeee eefe eete eext efet eft- er-x erer eret erft erfx erre etee eter etfe etre ette exer exrx exte extr feer feet fefe feff fere ferr fert fete fetr fett fext ffee ffff ffrr fftf free fret frex fter reef reet refe reff refr reft rere rert rete retr rett rexx rfef rrrr rtee rtex teef teer teet teff teft ter- tere terf terr tete tetr tett tetx text tre- tree tref tret trex trfr trte trtr tter ttff tttt txtr xeer xefe xer- xert xexe xfer xxxx

-tree eeeee efere efetf effer effet efter erere erte erter etete etext etree etter exert exter extre feere feret ferr- ferre ferte feter fette freer freet freex frere frett ftrtt reefe reeft reere refer refet reffe rere- reree reret retee reter retex rette rexer rtext t-rex tefe teret terex terre tert- teter tetex tetr- tette texte treer treet trefe treff trere trete trett ttttt xerte xetex xexex xtext xtree

e-text effere effete efreet efter- errett exeter ferfer ferrer ferret ferrex fertee ferter fetter frefre frette fterer fterre r-tree reefer reeffe refeet refeff refert refete refret refter reteer reteet retere retree retret retter t-tree teetee teeter terete terrer terret terrex terter tertre tetete tetter texter treete trefet trefte tretee trette x-tree xerert

ferrere freeter fretter reexert referee referer refrete rerefer reteere reterre retrete rettert terere terreer terrere tettete treetee trettre xxxxxxx

ferreter ferrette fetterer referree referrer treefree

exerttrex

ferretfeet

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