-tree eeeee eepee emeer emere emert emmer emmet empee empte emtee emure epure erem- erept erere errtu erte erter erump erupt etete etree etter eturu eum-u eurre meemu meere meete memer merer meret merre merte merur meter metr- metre mette metup metur meuer meure meute mmmmm mpret mreru mrmet mt-te mt-tm mt-tp mt-tr mt-tt mtepe mtree mtume mumme mummu muppu muret mureu murre murru murum murup murut muter mutet mutum p-rep peere peert peete pepee peppe pept- pepup perer peret perre perte perur peter petr- petre petru pette petur peure preem preme premp prete prute pter- ptere ptpre ptprm ptprr ptprt ptpru puett pumpe pupet puppe puree purer purre purte purum puter putre putt- putte puttu putup re-up reeme reepe reere remee remer remet remue repet reppe reprt reput rere- reree reret rerum retee retem reter rette reuer reuet reume reute rmutt ruere ruete rumer rummu rumpt rupee ruper ruter rutte ruutu teeme teemu teepe teeup tempe tempt tepee tepet tepeu teppu terem teret tereu terme terre tert- teter tetr- tette treer treet treme tremp trepp trept trere trete trett treut truer trume trump trupt trute ttttt tumut tupee turem turet turre turtu turup turut tutee tutte tuuru umeer umeme upeet upmet upper upput upter ureme urter urupe urutu uter- utmer utrum utter uttur uturu uuuuu