-tree eeeee emeer emere emert emese emeus emmer emmet emtee emure erem- erere erest erets ermes erres errtu erses erste ersts erte erter ertes eruts esere esmes esser esses essse essue estee ester estes estet estre estur estus esure etest etete etree etres etter ettes eturu eum-u eurre eurus euser m-set meees meems meemu meere meers meese meest meete meets memer memes memus merer meres meret merms merre merse merss merte merur merus mesee mesem meses messe meste mesue mesum mesur mesus mesut meter metes metr- metre metse metsu mette metts metur metus meuer meure meuse meute mmmmm mreru mrmet mt-te mt-tm mt-tr mt-tt mtree mtume muese mumme mummu mures muret mureu murre murru murse murum murus murut musee muser muses muset musme musts mustu muter mutes mutet mutsu mutts mutum mutus muuse reeme reere reese reest remee remer remet remse remue remus rere- reree reres reret rerum resee reses reset resse reste restr rests resue resus retee retem reter retes retsu rette retts reuer reuet reume reuse reuss reute rmutt rsust rtems ruere ruers ruete rumer rumes rummu rumst rus-m ruses russe ruste rusts rustu ruter rutte ruutu seeem seeme seems seere seers seese seest seesu seete seeum semee semes semet semme semum semur serer seres seret serme serre serse serss sert- serte serts serue serum serut seser seses sesse seste sestu sesue setee setem seter setme setse sette setts settu setus setut seuer seure seuss seute smees smeet smere smert smets smurr smuss smuts sssss steem steer stees steet stemm stems stere sterr sters stert stesu stete stets steur stree strem stret streu strrs strsm strue strum strut stuer stume stumm stums sture sturm sturt stuse stuss stute stuue sueme suere suers suess suest suete suets sueur sumer sumet sumru sumur sumut surer sures surme surre surte surtr surur surus suser suses susse susus sutee suter sutes sutte suttu sutum teeme teems teemu teers teese teest teets temes temse terem teres teret tereu terme terms terre terrs terse tert- tesem tesse teste tests teter tetes tetr- tetsu tette teuts tmuse treer trees treet treme trere tres- trese tress trest trete trets trett treus treut truer trues trume truse truss trust trute truus tsere tsets tsmmr tsuru tsuur ttest ttttt tumut turem turet turms turre turse turss turst tursu turtu turut tutee tutte tutus tuuru umeer umeme umest umsee umset ureme ursem ursus urter urums urutu usees useme users usest usses uster ustum ustur usure usutu uter- utmer utrum utter uttur uturu uuuuu