-tree eeeee eepee efere efetf effer effet effry efter eptfe erept erere errey erte erter etete etree etter etype eyere eyrer feere feret ferr- ferre ferry ferte feter fette feyer feyre freep freer freet frere frett freyr fryer ftrtt ftype fyffe fytte p-rep peepy peere peert peery peete pepee peppe peppy pept- perer peret perre perry perte perty peryr peter petey petr- petre petry pette petty petyt peyer peyet peyre pprey preef preff prete prety preye pryef pryer pter- ptere ptpre ptprf ptprr ptprt pyere pyper pyppe pyr-t pyree pyrre pyrye pytee pytte pytye reefe reeft reefy reepe reere refer refet reffe refry repet reppe reprt repry repyt rere- reree reret retee reter retry rette reyff reyte rperf rpety ryffe ryfte rytte ryyty teepe teety tefe tepee tepet teret terre terry tert- teter tetr- tette tetty teyre treer treet treey trefe treff trepp trept trere trete trett trety treye treyf tryer tryte ttttt ttype tyere tyffe typee typer typey tyree tyrer tyret tytte ye-ye yeere yeffe yefft yefte yeter yette yeyre yfere yfree yfret ytter yyete