-tree eeeee eerie eetti ehire ehret eirie eiter eithe eitri erere erier erite erith erixx erte erter erthe etete etext ether etite etree etter ettie exert exhex exite exter extre he-he heeii heere heete hehte heihe heire heith heiti heixt herei herie herit herre herte herth herti heter hethe hette hexer hexie hexit hheth hhhhh hi-ex hi-hi hier- hiree hirer hirth hithe hitit hitte hrere hthrt htree ieiri ierei iethe iette ihere ihite iiiee iiiii iitti irete irite irrit itete itext ithee ither itire itter itthe ittre ittti reere reerh reeth reeti reher rehet rehit rehri rehti reith rere- reree reret rerir retee reter retex rethe retie rette rexer rhett rieth rieti rihte ririe rithe rithi rtext t-rex teeth tehee tehri teret terex terre terri tert- teter tetex tethe tetr- tetri tette texte theei theer theex theie their theit theix ther- there theri thete theth thexx thier thire thiri thite thre- three thret thrie thrix ti-he ti-hi ti-ti tieit tiere tieri tieth tiexi tiree tireh tirer tiret tirit tirth titer tithe tithi titii titre titte titti tixte treer treet treie treit treix trere treri trete trett triei trier triet trit- trite tritt ttttt xerte xetex xexex xheet xtext xtree xxiii xxxii xxxix