-er -ol eee eef eel eeo eer eet eex ef- efe eff efl efo efr eft efx ele elf ell elo elr elt elx eo- eoe eof eol eoo eor eot ere erf erl ero err ert ete etf etl eto etr ett etx ex- exe exl exo exr ext exx fee fef fel feo fer fet fex ffe fff ffl ffo ffr fft ffx fle flf fll flo flr flt flx foe fof fol foo for fot fox fre frf frl fro frr frt fte ftf ftl fto ftr ftt ftx fxe fxr fxt fxx lee lef lel leo ler let lex lfe lff lfl lfo lfr lft lfx lle llf lll llo llr llt loe lof lol loo lor lot lox lrf lro lrr lrt lte ltf ltl lto ltr ltt ltx lxo lxr lxx oee oef oel oeo oer oet oex of- ofe off ofl ofo ofr oft ofx ole olf oll olo olt oo- oof ool ooo oor oot oox or- ore orf orl oro orr ort orx ot- ote otf otl oto otr ott ox- oxf oxo oxt oxx re- ree ref rel reo rer ret rex rfe rff rfl rfo rfr rft rle rlf rll rlo rlr rlt roe rof rol roo ror rot rox rrf rrl rrr rrt rte rtf rtl rto rtr rtt rtx rxr t-x te- tee tef tel teo ter tet tex tfe tff tfl tfo tfr tft tfx tle tlf tll tlo tlr tlt tlx to- toe tof tol too tor tot tox tre trf trl tro trr trt trx tte ttf ttl tto ttr ttt ttx txe txf txl txt xee xel xer xet xex xfe xfl xft xfx xlf xlr xlt xof xoo xor xot xox xrf xrt xrx xtf xtr xtx xxl xxo xxx

eeee eefe eefl eele eero eete eext efeo efet efor eft- elee elef eleo eler elet elex elfe elft elle ello elro elte elto eole eolo eore eorl eoto er-x erel erer eret erft erfx erle erll eroe erol eroo erre erro ertl etee etel eter etfe etoe etox etre etro ette etto exel exer exfo exo- exor exrx exte extl extr feel feer feet fefe feff fefo fele felf fell felo felt feof fere fero ferr fert fete fetr fett fext ffee ffff ffrr fftf flee fler flet flex floe floo flor flot flox foer fofo fole foll folo folr folt folx foof fool foot for- fore forl foro forr fort fote foto fott foxe foxx free freo fret frex froe frol frot ft-l fter leef leel leer leet lefe leff left lele lell lelo leof leor leox lere lero lert lete leto lett lext lexx llef llet llll lloo lofe loff loft lole loll lolo looe loof lool loor loot lore loro lote lotl loto lotr lott lox- loxo lrrr ltee lttr lxxx o-eo oele oere ofer off- offe offo offr ofor ofre ole- olef oleo oler olet olfe olle ollo olof olor olot ooer ooff oolo oooo oore oort ore- orel oreo orer orex orfe orff orle orlo oro- oroe orof oror orot orro orte orto otee oter oto- otoe otof otoo otor otre otro otte otto oxer oxo- oxof oxox oxxo reef reel reet refe reff refl refr reft rele rell relo relt reof reol reot rere rero rert rete reto retr rett rexx rfef rffl rlee rlef roel roer roet rofe roff rofl rofo role rolf roll rolo rolt roof rool roor root roox rore roro rort rote rotl roto rotr rott roxo rrle rrrr rtee rtex rtle rtlt teef teel teer teet teff tefl teft tel- tele tell telo telt teor ter- tere terf tero terr tete teto tetr tett tetx text tfot tfox tltx toee toer toet toff tofo toft tol- tole toll tolo tolt toof tool toor toot tore torf toro torr tort torx tote toto totr tott tox- toxo toxt tre- tree tref treo tret trex trfr troe troo trot trox trte trtr tteo tter ttff ttoe tttt txtr xeer xefe xer- xero xert xexe xfer xlet xlox xolo xoro xote xoxo xtol xtro xxxo xxxx

-tree eeeee eeler efere efetf effer effet efore eftel efter eleet elele eleo- eleot ellel eller ellet elloe eloee eloff elole eloor elore eloro elote eltro eofor eorre erere eroor erore eroto errol error erte ertel erter etete etext etoll etool etoro etree ettel etter ettle exert exflr exlex exloo exore exort extel exter extol extre extro feele feeor feere fefor felet felle felte feltt feoff feole ferel feret ferle ferlo ferox ferr- ferre ferro ferte fetel feter feto- fetor fette fleer fleet flere flero flert flete flett flexe flexo floor flore floro flote floto floxe floxx folet folex folle follo foole foore foote fore- forel foreo foret forex forro forte forto fotte foxer foxxx freel freer freet freex frere frett froot frore frote ftlee ftrtt leell leeof leere leert leffe leftx lelex lelle lerer lerot letot letre lette letto lexer lexoo lexxe lo-ex lofer loffe lofte loler lollo lolol looer looft loore loote lorel loreo lorer loret lorre lotof lotor lotte lotto loxo- o-fer oelet oerel oerle offer offof offre offto ofoto oftel ofter oleo- olere olleo oller oltet oltre oo-er ooooo orell oreo- orere orero orexo orfeo orfoe orfor orlet oroer orret orter ortet ortoo otell otelo otere otero otole otolo ototo otter oxole oxter reefe reeft reere refel refer refet reffe reffo relee relet relex rello relot relte reorx rere- reree reret retee retel reter retex retox retro rette retto rexel rexer ro-ro roell roero rofel roffe rofor roleo rolex rolfe rolfo rolle rollo rooer roofe rooft roole roore roote rorer rotel roter rotfl rotle roto- rotol rotor rotot rotox rotte rotto roxle rtext t-rex teele teell tefe tele- teleo teler telex tell- telle tello telo- teolo teotl teret terex teror terre terro tert- tetel teter tetex tetle tetr- tetro tette texel texor texte tlell tlett toefl toeof toerr toeto tofet toffo tofol tofor tofte toler tolet tolex tolle tollo toloo tolor tolox toole