-tree eeeee eeklo eeler efere efetf effer effet efore eftel efter ekeko ekker eklof ekool ektor eleet elele eleo- eleot ellek ellel eller ellet elloe eloee eloff eloko elole eloor elore eloro elote eltek eltro eofor eorre erere erkel erkko eroor erore eroto errol error erte ertel erter eteke etete etoko etoll etool etoro etree etrek ettel etter ettle feele feeor feere fefor felet felle felte feltt feoff feole ferel feret ferle ferlo ferr- ferre ferro ferte fetel feter feto- fetor fette fleek fleer fleet fleke flere flerk flero flert flete flett floke floko flook floor flore floro flote floto fokel fokke fokto folet folke folle follo foole foore foote fore- forel foreo foret forro forte forto fotte freek freel freer freet freke frere frett froot frore frote ftlee ftrtt k-tel keefe keele keere kefee kelek kelle kerek kerel keret kerle kerre ketek ketel keter keto- ketol kette ketto kleet klefe klerk klett kloek kloof kloot klote ko-ko kofel kofte kokel koker koket kokko kokle kokor kokot kokre kolek kolel koler kolet kolff kolle kollo kolol kolot kolte korek korel korff korke korol koror korro korte kotel kotor kotto kre-o kreef kreek kreel kreke krele krell kreo- kreol krete kroft kroke krole kroll kroot krtok leeke leell leeof leere leert leffe lefko lekel lekor lelle lerer lerot letek letot letre lette letto lofer loffe lofte loker loket lokke lokot loler lollo lolol looer looft looke lookf lookt loore loote lorel loreo lorer loret lorke lorre lotof lotor lotte lotto o-fer oelet oerel oerle offek offer offof offre offto ofoto oftel ofter okeke okelo okere oketo okfol okker oklee okole okoro oleo- olere olleo oller oltet oltre oo-er ooooo orell oreo- orere orero orfeo orfoe orfor orkel orlek orlet orlok oroer oroke orret orter ortet ortok ortoo otell otelo otere otero otole otolo ototo otrok otter reefe reeft reere refel refer refet reffe reffo rekel rekke rekle relee relek relet relko rello relot relte rere- reree reret retee retel reter retro rette retto ro-ro roell roero rofel roffe rofor rokee roker roket rokke rokkk rokle rokot rokto roleo rolfe rolfo rolle rollo rolok rooer roofe rooft rooke roole roore roote rorer rorke rotel roter rotfl rotko rotle roto- rotol rotor rotot rotte rotto rt-rk teeko teele teell tefe tekel teket tekke tekko tele- telek teleo teler tell- telle tello telo- teolo teotl terek teret terok teror terre terro tert- tetel teter tetle tetr- tetro tette tlell tlett toefl toeof toerr toeto tofet toffo tofol tofor tofte toker tokke tokko toko- tokol tokor toler tolet tolko tolle tollo toloo tolor tooke toole toolt toore torel toreo toret torke torok torre torro torte torto totel toter totle toto- totoe totok totoo totte treer treet trefe treff trele trere trete trett troee trofe troff troft troke troll trott tteok ttttt