-tree eeeee emeer emere emert emese emmer emmet emtee erem- erere erest erets ermes erres erses erste ersts erte erter ertes esere esmes esser esses essex essse estee ester estes estet estre etest etete etext etree etres etter ettes exeem exeme exert exmes exmet exter extre extts m-set meees meems meere meers meese meest meete meets memer memes memex merer meres meret merms merre merse merss merte mesee mesem meses messe meste meter metes metr- metre metrx metse mette metts mexer mmmmm mrmet mt-te mt-tm mt-tr mt-tt mtree reeme reere reese reest remee remer remet remex remse rere- reree reres reret resee reses reset resse reste restr rests retee retem reter retes retex rette retts rexer rexes rtems rtext seeem seeme seems seere seers seese seest seete semee semes semet semex semme serer seres seret serme serre serse serss sert- serte serts seser seses sesse seste setee setem seter setme setse sette setts sexer sexes sexst sext- sexte sexts smees smeet smere smert smets sssss steem steer stees steet stemm stems stere sterr sters stert stete stets stree strem stret strrs strsm t-rex teeme teems teers teese teest teets temes temse terem teres teret terex terme terms terre terrs terse tert- tesem tesse teste tests teter tetes tetex tetr- tette texte texts treer trees treet treme trere tres- trese tress trest trete trets trett trexs tsere tsets tsmmr ttest ttttt xemes xerem xeres xerse xerte xetex xexex xmmer xterm xtext xtree