-tree eeeee eepee eerie eetti eipri eirie eiter eitri eppie epure erept erere erewe erier erite eritu errew errtu erte erter erupt etete etite etree etter ettie eturu etwee eurre ewert ieiri iepe ieper ierei iette iiiee iiiii iitti iperu ipeti ipiti ippee ippei irete irewe irite irrep irrit irupi itete itewe itire itrip itter ittre ittti itu-r itu-t ituri ituru itutu iuput iurie iweep iwere iwrit p-rep peere peeri peert peete peire peirt pepee peppe peppi pept- pepup perer peret peri- perie perit perre perri perte perti perur peter petie petit petr- petre petri petru pette petti petur peure pewee pewet pewit pewpe pewre piere pieri piert pieup piewe piiri piper pipet pipit pippi pipri pirie pirre pirri pirui piter pitie pitip pitre pitri pitru pitti piuri piuru piute preie prete preti prewe prier priit prite priti pritt priwe prute pter- ptere pteri ptpre ptprr ptprt ptpru pueri puett pupet puppe pupri puree purer purie purre purte puter putit putre putt- putte putti puttu putup puuri puwit re-up reepe reere reeti reewe repet repew repit reppe reprt reprw reput rere- reree reret rerip rerir retee reter retew retie retip rette reuer reuet reuir reute reuti reuwe rewer rewet rieti riper ripit rippe ripup ririe rirpu riuer rripe ruere ruete ruiru rupee ruper rupie rupit ruter rutte ruutu ruwer ruwet teepe teeup tepee tepet tepeu tepit teppu tepui teret tereu terre terri tert- teter tetr- tetri tette tewer tewet tewit ti-ti tieit tiere tieri tierp tieup tieut tiper tipet tipit tippi tippu tipup tiree tirer tiret tirit tirru tirur titer titii titre titte titti titup treer treet treie treip treit trepp trept trere treri trete trett treut trewe triei trier triet trieu triip tripe tripi tripp tript trit- trite tritt triwe truer truit trupt trute truwe ttttt tueie tueit tuire tuite tupee tuppi turei turet turew turie turit turre turri turtu turup turut tutee tutie tutte tutti tuuei tuuri tuuru tweep tweer tweet tweie twere twerp twier twire twirp twite uitti upeet upier upper uppie upput upter uptie ureit urewe urite urter uruit urupe ururi uruti urutu uter- uteri utier utter uttur uturu utwit uuuuu uwire weepe weere weert weete weier weipe weire weite weper wepit wepte weput were- werei werew werie werpe werre werte wertu werur weter wette weurt wi-wi wiper wipit wippe wipte wirer wirie wirwe witer witie witte witti wiure wrete wrett wrier write wrutt wuwei ww-ii wwiii wwwww