-tree eeeee egger egret eorre erege erere ergo- ergot eroge eroor erore eroto error erte erter etete etext etoro etree etrog etter exert exore exort exter extre extro geere geert geete gegge georg gerre gertt getee geter getgo gette getto getxo go-go go-oo go-to goget gogro googe goore goote goree gorer gorge gorgo gorre goter gotoo gotor gotto greer greet grege gregg grego greot grete grett groet groge grogg groot grote grott grrrr gtrot ogogo oo-er ooooo oreo- orere orero orexo oroer orret orrgo orter ortet ortoo otego otere otero ototo otter oxter reege reere reger reget regex regge reggo regtt reorg reorx rere- reree reret retee reter retex retgo retox retrg retro rette retto rexer ro-ro roero roger roget rogge rooer rooge roore roote rorer roter rotge roto- rotor rotot rotox rotte rotto rtext t-rex teege tegre teret terex terge tergo teror terre terro tert- teter tetex tetr- tetro tette texor texte to-go toego toerr toeto toget togge toore toreo toret torgo torog torre torro torte torto torxe toter totex toto- totoe totoo totte toxo- treer treet treg- trego trere trete trett troee trott ttttt xero- xerox xerte xetex xexex xootr xorro xotox xoxox xtext xtort xtree