-tree e-fit e-gif eeeee eepee eerie eetti efere eferi efetf effer effet effie efrei efter egger eggie eggig egret eiger eipri eirie eiter eitri epfig eppie eptfe erege erept erere erier eriff erite erte erter etete etite etree etter ettie feere feier feige feret ferie ferit ferr- ferre ferri ferte feter feti- fetii fetir fette fieee fieri fifer fifie figee figer figge firee firei firer firie firit firre fitit fitri fitte freei freep freer freet frege freir freit frere frett frier frige frigg fripp frite fritt ftrtt geere geert geete gefte gegge geier geige geire geite geitt gepir gerre gerri gertt getee geter getit gette getti gi-fi gieft giger gigge gippe gippi girei gitie gitig gitit greef greer greet grefe greff grege gregg greif greig greip greit grepe grete grett grftr grief grieg grier griet grife griff grift grigg gripe gript grite grrrr ieiri iepe ieper ierei iette if-- ifere iffet ifrit ifttt iggri igigi iiiee iiiii iitti iperf ipeti ipiti ippee ippei iregi irete irite irreg irrep irrit itete itfet itfit itget itigi itire itrip itter ittre ittti p-rep peege peere peeri peert peete peire peirt pepee peppe peppi pept- perer peret perge peri- perie perit perre perri perte perti peter petie petit petr- petre petri pette petti pgrep piere pieri piert pigge pigit piiri piper pipet pipge pipit pippi pipri pirie pirre pirri piter pitie pitip pitre pitri pitti preef preff preie preif prepg prete preti prief prier prife priit prite priti pritt pter- ptere pteri ptpre ptprf ptprg ptprr ptprt reefe reeft reege reepe reere reeti refer refet reffe refit reger reget regge regie regii regtt reiff reigi repeg repet repit reppe reprt rere- reree reret rerig rerip rerir retee reter retie retip retrg rette ri-fi riefe rieti rifer rig-i riget riife riper ripit rippe ririe rperf rripe teege teepe tefe teffi teggi tegir tegre teige tepee tepet tepit teret terge terif terre terri tert- teter tetr- tetri tette ti-ti tieit tiere tieri tierp tiffe tiger tigit tigre tigri tiifp tiigi tiper tipet tipit tippi tiree tirer tiret tirig tirit titer titig titii titre titte titti treer treet trefe treff treg- treie treif treip treit trepp trept trere treri trete trett triei trier triet trife trige trigg triip tripe tripi tripp tript trit- trite tritt ttttt