-er eee eer eet eqe eqq eqt equ ere erq err ert eru ete etr ett etu eu- eue eur eut qee qet qqq qqu qre qrt qru qtq qtr qu- que qur qut re- ree req rer ret reu rrq rrr rrt rru rte rtq rtr rtt rtu rue rur rut ruu te- tee teq ter tet teu tre trq trr trt tru tte ttr ttt ttu tue tur tut tuu uee uer uet ur- ure urr urt uru ute utr utt utu uue uur uut uuu

eeee eete eetu equ- eque erer eret erre ertu erur etee eter etre ette ettu euer eur- eure eurt qere qerq qqqq quee quer quet qute quu- reet rere rert reru rete retr rett reue reut reuu rrrr rtee ruer ruet rure ruru rute rutt rutu teer teet ter- tere terr teru tete tetr tett tetu teut tre- tree tret treu trte trtr true trut truu tter tttt tuer tuet ture turr turt turu tute tutt tutu ure- uret urre urte uruq urur urut uter uttu utuq uuuu

-tree eeeee erere errtu erte erter etete etree etter eturu eurre q-tee queer queet quere quert quete queue qureq quruq quurt reere reque rere- reree reret retee reter rette reuer reuet reute ruere ruete ruter rutte ruutu teret tereu terre tert- teter tetr- tette treer treet trere trete trett treut truer trute ttttt tuqtu tuque turet turre turtu turuq turut tutee tutte tuuru urter urutu uter- utter uttur uturu uuuuu

errett ettutu eutere qerret queere querre queter queuer r-tree reteer reteet retere retree retret retter rettur returu reuere reuter reutte rurutu ruttee rutter t-tree teetee teeter terete terrer terret terter tertre tetete tetter treete tretee trette truett turque turret turtur tururu tuteur tutter tuttut ureter urette uteute

queerer quequer requeer requere requete reteere reterre retrete rettert reutter terere terreer terrere tettete treetee trettre turquet tut-tut uterque utterer

teruteru