-tree eeeee emeer emere emert emmer emmet emtee emure erem- erere errtu erte erter etete etext etree etter eturu eum-u eurex eurre exeem exeme exert exmet exter extre extue exute meemu meere meete memer memex merer meret merre merte merur meter metr- metre metrx mette metur meuer meure meute mexer mmmmm mreru mrmet mt-te mt-tm mt-tr mt-tt mtree mtume mumme mummu muret mureu murex murre murru murum murut muter mutet mutex mutum muxer reeme reere remee remer remet remex remue remux rere- reree reret rerum retee retem reter retex rette reuer reuet reume reute rexer rmutt rtext ruere ruete rumer rumex rummu ruter rutte ruutu t-rex teeme teemu terem teret tereu terex terme terre tert- teter tetex tetr- tette texte treer treet treme trere trete trett treut treux truer truex trume trute truxe ttttt tumut turem turet turre turtu turut tutee tutte tuuru umeer umeme ureme urter urutu uter- utmer utrum utter uttur uturu uuuuu xerem xerte xetex xetum xexeu xexex xmmer xterm xtext xtree