-tree eeeee eerie eetti eirie eiter eitri erere erewe erier erite erixx errew erte erter etete etext etite etree etter ettie etwee ewert exert exite exter extre ieiri ierei iette iiiee iiiii iitti irete irewe irite irrit itete itewe itext itire itter ittre ittti itwix iwere iwrit reere reeti reewe rere- reree reret rerir retee reter retew retex retie rette rewer rewet rexer rieti ririe rtext t-rex teret terex terre terri tert- teter tetex tetr- tetri tette tewer tewet tewit texte ti-ti tieit tiere tieri tiexi tiree tirer tiret tirit titer titii titre titte titti tixte treer treet treie treit treix trere treri trete trett trewe triei trier triet trit- trite tritt triwe ttttt tweer tweet tweie twere twier twire twite twixt weere weert weete weier weire weite were- werei werew werie werre werte weter wette wi-wi wirer wirie wirwe witer witie witte witti wixiw wrete wrett wrier write ww-ii wwiii wwwww x-wrt xerte xetex xexex xtext xtree xxiii xxxii xxxix