-tree eeeee eepee eerie eetti egger eggie eggig egret eiger eipri eirie eiter eitri eppie erege erept erere erier erite erte erter etete etite etree etter ettie geere geert geete gegge geier geige geire geite geitt gepir gerre gerri gertt getee geter getit gette getti giger gigge gippe gippi girei gitie gitig gitit greer greet grege gregg greig greip greit grepe grete grett grieg grier griet grigg gripe gript grite grrrr ieiri iepe ieper ierei iette iggri igigi iiiee iiiii iitti ipeti ipiti ippee ippei iregi irete irite irreg irrep irrit itete 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 preie prepg prete preti prier priit prite priti pritt pter- ptere pteri ptpre ptprg ptprr ptprt reege reepe reere reeti reger reget regge regie regii regtt reigi repeg repet repit reppe reprt rere- reree reret rerig rerip rerir retee reter retie retip retrg rette rieti rig-i riget riper ripit rippe ririe rripe teege teepe teggi tegir tegre teige tepee tepet tepit teret terge terre terri tert- teter tetr- tetri tette ti-ti tieit tiere tieri tierp tiger tigit tigre tigri tiigi tiper tipet tipit tippi tiree tirer tiret tirig tirit titer titig titii titre titte titti treer treet treg- treie treip treit trepp trept trere treri trete trett triei trier triet trige trigg triip tripe tripi tripp tript trit- trite tritt ttttt