-tree eeeee eepee eevee eever epure erept erere ereve errtu erte erter erupt etete etree etter eturu eurre evere everr evert evete evett eveve p-rep peere peert peete peeve pepee peppe pept- pepup perer peret perre perte perur perve peter petr- petre petru pette petur peure prete pretv preve prute pruve pter- ptere ptpre ptprr ptprt ptpru puett pupet puppe puree purer purre purte puter putre putt- putte puttu putup re-up reepe reere reeve repet reppe reprt reput rere- reree reret retee reter rette reuer reuet reute revep rever revet revue revup rtrev ruere ruete rupee ruper ruter rutte ruutu teepe teeup tepee tepet tepeu teppu teret tereu terre tert- terve teter tetr- tette tevet treer treet trepp trept trere trete trett treut treve truer trupt trute trutv ttttt tupee turet turre turtu turup turut turve tutee tutte tuuru upeet upper upput upter urter urupe urutu uter- utter uttur uturu uuuuu veere veeve veper verre verte vertu verve vette veuve vever vuere vuver