-er -ol eee eef eel eeo eer eet eev ef- efe eff efl efo efr eft ele elf ell elo elr elt elv eo- eoe eof eol eoo eor eot ere erf erl ero err ert erv ete etf etl eto etr ett etv eve evf evl evo evr evt evv fee fef fel feo fer fet fev ffe fff ffl ffo ffr fft ffv fle flf fll flo flr flt foe fof fol foo for fot fre frf frl fro frr frt fte ftf ftl fto ftr ftt ftv fvt lee lef lel leo ler let lev lfe lff lfl lfo lfr lft lle llf lll llo llr llt llv loe lof lol loo lor lot lov lrf lro lrr lrt lrv lte ltf ltl lto ltr ltt ltv lve lvf lvl lvr lvt lvv oee oef oel oeo oer oet of- ofe off ofl ofo ofr oft ofv ole olf oll olo olt oo- oof ool ooo oor oot oov or- ore orf orl oro orr ort orv ot- ote otf otl oto otr ott otv ov- ove ovf ovl ovo ovv re- ree ref rel reo rer ret rev rfe rff rfl rfo rfr rft rfv rle rlf rll rlo rlr rlt roe rof rol roo ror rot rov rrf rrl rrr rrt rte rtf rtl rto rtr rtt rtv rve rvf rvl rvo rvr rvt rvv te- tee tef tel teo ter tet tev tfe tff tfl tfo tfr tft tle tlf tll tlo tlr tlt tlv to- toe tof tol too tor tot tov tre trf trl tro trr trt trv tte ttf ttl tto ttr ttt ttv tve tvf tvl tvo tvr tvt v-e vee vef vel veo ver vet vff vfl vfr vft vfv vl- vle vlf vll vlo vlt vlv voe vof vol voo vor vot vov vre vrf vrr vrt vte vtl vto vtr vtt vtv vvo vvr vvt vvv

eeee eefe eefl eele eelv eero eete efeo efet efor eft- elee elef eleo eler elet elev elfe elft elle ello elro elte elto elve elvo eole eolo eore eorl eoto erel erer eret erev erft erle erll eroe erol eroo erre erro ertl erve etee etel eter etfe etoe etre etro ette etto etvo evel ever evet evoe evol evoo evre feel feer feet fefe feff fefo fele felf fell felo felt feof fere fero ferr fert ferv fete fetr fett fetv feve fevr ffee ffff ffrr fftf flee fler flet floe floo flor flot foer fofo fole foll folo folr folt foof fool foot for- fore forl foro forr fort fote foto fott fove fr-v free freo fret froe frol frot frvt ft-l fter leef leel leer leet lefe leff left lele lell lelo leof leor leov lere lero lert lete leto lett lev- leve levo llef llet llll lloo lo-v lofe loff loft lole loll lolo looe loof lool loor loot lore loro lote lotl loto lotr lott lotv love lovo lrrr lrtv ltee lttr lttv lvov lvrr o-eo oele oere ofer off- offe offo offr ofor ofre ole- olef oleo oler olet olev olfe olle ollo olof olor olot olov ooer ooff oolo oooo oore oort ore- orel oreo orer orfe orff orle orlo oro- oroe orof oror orot orro orte orto orve orvr otee oter oto- otoe otof otoo otor otov otre otro otte otto ovee over ovet ovfl ovo- ovol ovoo ovot ovre reef reel reet reev refe reff refl refr reft rele rell relo relt reof reol reot rere rero rert rete reto retr rett reve revo rfef rffl rlee rlef roel roer roet roev rofe roff rofl rofo role rolf roll rolo rolt roof rool roor root rore roro rort rote rotl roto rotr rott rove rovo rrle rrrr rtee rtle rtlt rtve rver teef teel teer teet teev teff tefl teft tel- tele tell telo telt teor ter- tere terf tero terr tete teto tetr tett tevl tfot toee toer toet toff tofo toft tol- tole toll tolo tolt toof tool toor toot tore torf toro torr tort torv tote toto totr tott tove tovo tre- tree tref treo tret trev trfr troe troo trot trte trtr trvl tteo tter ttff ttoe tttt tvel tver tvro tvrr tvtv veel veer veet vel- vele vell velo velt veol veor ver- vere verl vero vert vete veto vetr veve vevo vflo vfor vlvt voel voer voet voff vofr vole volf voll volo volt vool voor voot vor- vore voro vort vote voto vref vreo vret vrot vrto vtol vtvl vver vvvv

-tree eeeee eeler eevee eever efere efetf effer effet efore eftel efter eleet elele eleo- eleot eleve ellel eller ellet elloe eloee eloff elole eloor elore eloro elote eltro elver elvet eofor eorre erere ereve eroor erore eroto errol error erte ertel erter etete etoll etool etoro etree ettel etter ettle evell eveof evere evero everr evert evete evett eveve evolo evolv evoor evote evvol fe-tv feele feeor feere fefor felet felle felte feltt feoff feole ferel feret ferle ferlo ferr- ferre ferro ferte fetel feter feto- fetor fette fever fevre fleer fleet flere flero flert flete flett flevo floor flore floro flote floto flvto folet folle follo foole foore foote fore- forel foreo foret forro forte forto forvo fotte freel freer freet frere frett frevo froot frore frote ftlee ftrtt leell leeof leere leert leeve leffe lefve lelle lelov leove lerer lerot letot letov letre lette letto levee level lever levet levo- levor levre loeve lofer loffe lofte loler lollo lolol looer looft loore loote loove lorel loreo lorer loret lorre lotof lotor lotte lotto lovee lover lovet lovre lovro lvovo o-fer oelet oelve oerel oerle ofeve offer offof offre offto ofoto oftel ofter oleo- olere olleo oller olovo oltet oltre olver oo-er ooooo oovoo orell oreo- orere orero orfeo orfoe orfor orlet orlov oroer orret orter ortet ortoo orvet otell otelo otere otero otole otolo ototo otrov otter ottov over- overo overt ovett ovolo reefe reeft reere reeve refel refer refet