-tree e-fit eeeee eerie eetti efere eferi efetf effer effet effie efrei efter eirie eiter eitri erere erewe erier eriff erite errew erte erter etete etite etree etter ettie etwee ewert ewfte feere feier feret ferie ferit ferr- ferre ferri ferte feter feti- fetii fetir fette fewer fewte fieee fieri fifer fifie firee firei firer firie firit firre fitit fitri fitte freei freer freet freir freit frere frett frier frite fritt ftrtt ieiri ierei iette if-- ifere iffet ifrit ifttt iiiee iiiii iitti irete irewe irite irrit itete itewe itfet itfit itire itter ittre ittti iwere iwrit reefe reeft reere reeti reewe refer refet reffe refit reiff rere- reree reret rerir retee reter retew retie rette rewer rewet ri-fi riefe rieti rifer riife ririe tefe teffi teret terif terre terri tert- teter tetr- tetri tette tewer tewet tewit ti-ti tieit tiere tieri tiffe tiree tirer tiret tirit titer titii titre titte titti treer treet trefe treff treie treif treit trere treri trete trett trewe triei trier triet trife trit- trite tritt triwe ttttt tweer tweet tweie twere twier twire twite weeft weere weert weete weffe wefie weier weife weiff weire weite were- werei werew werie werre werte weter wette wi-fi wi-wi wieff wiffe wifie wirer wirft wirie wirwe witer witie witte witti wrete wrett wrier write ww-ii wwiii wwwww