b-tree bbbbbb bebite beebee beebem beembe beemer beerme beeter beiber beimir beirut bemeet bemete bemire bemute berbee berber bereet berere berime bermet berrer berret berrie bertem bertie bertre berube beruri beteem betere betete betime betire betrim betrue bettee better bettie betutu beumer beurre bibber bibemi bibiri bibiru bieber bierum bierut bimber bimmer bireme biribi birute biteit biteme bitier bitime bitium bitrum bitter bittie bittur bitume biuret breere breite bremer bremit brette breuer bribe- bribee briber bribir bribri brimer brimir brimme brubru bruree brutii brutti brutum bubber bububu bumbee bummer bummit burbet burbur bureit burier buriti burree burrer burret burrie bururi burutu butere butmir butter buttie buttir ebbert ebr-ii ebrie eburru eburum eebree eerier eibert embibe embree embrue embute emeere emerit emeter emeute emiter emmert emmett emmitt emmure erbium erbree erebti eretum erimbm erimem ermite errett ettutu euerie eurite eutere i-bere i-bete i-bure i-tree ibrium imberb imbert imbibe imbrie imbrue imbute imiere imirim immert immire immure immute irrite itbeme iterum ittiri iturbe iturbi m-tree mbembe mbieri meemie meerut meeter meetit meetme meetre meirre meitei member membre mememe memere mereit merete merire meritt mermer mermet merrem merret merrie merrit merter mertim meruit merure meteer meteti metier metime metire metrer metrum metter mettet mettur meurte mibbit miburi mierie mimmer mimure mirier miriti mirrer miruru mitier mitrit mitter mittet mtiebi muerte muette mummer mummie muriti muritu murium murmir murmur murree murrie murrit murter mutere mutitu mutrie mutter muttur muturi mutuum muumuu r-tree re-mit rebbit rebite rebuit rebute reemit reiber reimei reimer reiter remeet remete remeti remeue remire reteer reteet retere reterm retime retire retree retret retrim retter rettur retube returu reueir reuere reuire reuter reutte reutum ribber ribbet ribbie ribbit ribibe ribier rieber rieter riette rietti rimier rimmer rirumu ritbum rititi ritter riuere rubbee rubber rubbie rubier rubite rubrie rubrum rubutu rui-be ruiter rumber rumbur rummer rumti- rurutu ruttee rutter rutube t-tree t-tube te-uri tebbit teebee teemer teerme teetee teeter teirei teitur tembre temere temuir terete teribe terium termer termit terrer terret terrie territ terter tertre terumi tetete tetter tibbit tiber- tibere tiberi tibert tibeti tibiri tibrie tierer tieret tierme tiete tietie tieute timber timbre timimi timiri timmer timmie timure tirret tirrit titbit titibu titiri tittee titter tittie trebur treete tremet tremie tretee tretie trette tribit tribut triibe trimer trimet triter truett truite truitt trumbe tubber tubbie tuiuti tumer tummer tumtum turbet turbit turmer turmit turmut turret turrum turtur tururu tuteur tutter tuttut tutume u-tube ubimet umbier umbite umirim ureter urette urtite uteute utrubi