-tree eeeee eeler efere efetf effer effet efore eftel efter eleet elele eleo- eleot ellel eller ellet elloe eloee eloff elole eloor elore eloro elote eltro eofor eorre erere eroor erore eroto errol error erte ertel erter etete etext etoll etool etoro etree ettel etter ettle exert exflr exlex exloo exore exort extel exter extol extre extro feele feeor feere fefor felet felle felte feltt feoff feole ferel feret ferle ferlo ferox ferr- ferre ferro ferte fetel feter feto- fetor fette fleer fleet flere flero flert flete flett flexe flexo floor flore floro flote floto floxe floxx folet folex folle follo foole foore foote fore- forel foreo foret forex forro forte forto fotte foxer foxxx freel freer freet freex frere frett froot frore frote ftlee ftrtt leell leeof leere leert leffe leftx lelex lelle lerer lerot letot letre lette letto lexer lexoo lexxe lo-ex lofer loffe lofte loler lollo lolol looer looft loore loote lorel loreo lorer loret lorre lotof lotor lotte lotto loxo- o-fer oelet oerel oerle offer offof offre offto ofoto oftel ofter oleo- olere olleo oller oltet oltre oo-er ooooo orell oreo- orere orero orexo orfeo orfoe orfor orlet oroer orret orter ortet ortoo otell otelo otere otero otole otolo ototo otter oxole oxter reefe reeft reere refel refer refet reffe reffo relee relet relex rello relot relte reorx rere- reree reret retee retel reter retex retox retro rette retto rexel rexer ro-ro roell roero rofel roffe rofor roleo rolex rolfe rolfo rolle rollo rooer roofe rooft roole roore roote rorer rotel roter rotfl rotle roto- rotol rotor rotot rotox rotte rotto roxle rtext t-rex teele teell tefe tele- teleo teler telex tell- telle tello telo- teolo teotl teret terex teror terre terro tert- tetel teter tetex tetle tetr- tetro tette texel texor texte tlell tlett toefl toeof toerr toeto tofet toffo tofol tofor tofte toler tolet tolex tolle tollo toloo tolor tolox toole toolt toore torel toreo toret torre torro torte torto torxe totel toter totex totle toto- totoe totoo totte toxo- toxol treer treet trefe treff trele trere trete trett troee trofe troff troft troll trott ttttt xero- xerox xerte xetex xexex xootr xorro xotox xoxox xtext xtort xtree