-tree eeeee eeler efere efetf effer effet efrem eftel efter eleet elele eleme ellel eller ellet elmer elmet elmex emeer emele emell emere emerl emert emmer emmet emtee emtel erem- erere erte ertel erter etete etext etree ettel etter ettle exeem exeme exert exflr exlex exmet extel exter extre feele feeme feere felet felle felte feltt femle femme ferel feret ferle ferme ferr- ferre ferte fetel feter fette fleem fleer fleet fleme flere flert flete flett flexe fmllr freel freer freet freex freme fremm frere frett ftlee ftrtt leell leeme leere leert leffe leftx lelex lelle lemel lemer lemme lerer letem letme letre lette lexer lexml lexxe m-tel meefe meele meell meere meete melee melem melet melex mell- melle melte memel memer memex merel merer meret merle merre merte metel meter metle metr- metre metrx mette mexel mexer mlete mmmmm mrlee mrmet mt-te mt-tf mt-tm mt-tr mt-tt mterf mtfmt mtree mttle reefe reeft reeme reere refel refer refet reffe refme relee relet relex relte remee remel remer remet remex rere- reree reret retee retel retem reter retex rette rexel rexer rtext rtrfm t-rex teele teell teeme tefe tele- telem teler telex tell- telle temel terem teret terex terme terre tert- tetel teter tetex tetle tetr- tette texel texml texte tlell tlett tlmer tlrfm treer treet trefe treff trele treme trere trete trett ttttt xerem xerte xetex xexex xmmer xterm xtext xtree