-tree eeeee ef-tu efere efetf effer effet efore efter efuru efutu eofor eorre erere eroor erore eroto error errtu erte erter etete etext etoro etour etree etter eturu eurex euro- eurre exert exore exort exout exter extre extro extue exute feeor feere fefor feoff feret ferox ferr- ferre ferro ferte feter feto- fetor fette feuer feute foore foote fore- foreo foret forex forro forte forto forur fotte fotur fouee fouet foure fouro foxer foxxx freer freet freex frere frett freur froot frore frote frute fruto fruux ftrtt fu-fu fuero furo- furor futex futur o-fer offer offof offre offto ofoto ofour ofter oo-er ooooo oreo- orere orero orexo orfeo orfeu orfoe orfor oroer orout oroux orret orter ortet ortoo oruro orutu otere otero ototo otour otter ottur oture ouert ouoro oure- outer outof outre outro outto oxter reefe reeft reere refer refet reffe reffo refut reorx rere- reree reret retee reter retex retox retro rette retto reuer reuet reute rexer ro-ro roero roeux roffe rofor rooer roofe rooft roore roote rooue rorer roter roto- rotor rotot rotox rotte rotto rouer rouet roufe roure route routt rtext ruere ruete ruffe ruffo rufo- ruter rutte ruutu t-rex tefe teret tereu terex teror terre terro tert- teruo teter tetex tetr- tetro tette teuto texor texte toeof toerr toeto tofet toffo tofor tofte toore toreo toret torre torro torte torto tortu torue torxe toter totex toto- totoe totoo totte toure touro toute toxo- treer treet trefe treff trere trete trett treut treux troee trofe troff troft trott troue trout truer truex truff truro trute truxe ttttt tuero tuffe tufte tuotu turet turot turre turro turtu turut tutee tuteo tutor tutte tutto tuuru ufere ufofu uouee ureo- urour urter urutu uter- utero utro- utror utter uttur uturu ututo uuuuu x-out xero- xerox xerte xetex xexeu xexex xootr xorro xotox xoxox xtext xtort xtree