-tree eeeee eeler eepee eerie eetti eiler eilet eipri eirie eitel eiter eitri eleet elele eleri eliel elite ellel eller ellet ellie elpee elper eppie erept erere erier erite erpel erte ertel erter ertil etete etile etite etree ettel etter ettie ettle ieiri iepe ieper ierei iette iiiee iiiii iitti ileri iller illit ilter ipel ipele ipeti ipiti ippee ippei irele irete iriel irill irite irrel irrep irrit itele itell itete itire itrip ittel itter ittre ittti leeli leell leere leert leile leill leip- leire leite lelei lelep lelle lelli lepel leper lepet lepir leppe lepre lept- lerer lerie letil letit letre lette lieli liepe liere lilet lilie lille lilli lipet lipie lippe lippi liril litel liter litir litre litte litti p-rep peele peell peere peeri peerl peert peete peile peill peire peirl peirt pelee peler pelet pelit pelle pelli pepee pepel peple peppe peppi pept- perel perer peret peri- perie peril perit perle perre perri perte perti peter petie petit petr- petre petri pette petti piele piere pieri piert piiri pilei piler pilet pili- pille piper pipet pipil pipit piple pipli pippi pipri pirie pirre pirri piter pitie pitip pitle pitre pitri pitti pleep pleet pleie pleit plete pliei plier plite plitt preie prell prelp prepl prete preti prier priit prile prill prite priti pritt pter- ptere pteri ptil- ptile ptpre ptprr ptprt reepe reere reeti reile reill relee relet relie relit relli relte repel repet repit reple reppe reprt rere- reree reret rerip rerir retee retel reter retie retil retip rette rieti riler rille ripel riper ripit riple rippe ririe rripe teele teell teepe teill tele- telei telep teler telit tell- telle telli telti tepee tepet tepit teret terli terre terri tert- tetel teter tetle tetr- tetri tette ti-ti tieit tiele tieli tielt tiere tieri tierp tiler tilie tilip tille tilli tilte tiper tipet tipil tipit tiple tippi tiree tirer tiret tirit tirle tirli tirtl titel titer titii titil title titli titre titte titti tlell tlett tpler treer treet treie treil treip treit trele trepp trept trere treri trete trett triei trier triet triip trill tripe tripi tripl tripp tript trit- trite tritt ttttt