b-tree bbbbbb bebnum beebee beebem beembe beemen beemer beerme beerne beeter bemeet bement bemete bemute benben beneme benete benett benner bennet bennur benreu bentee benter benumb berbee berber bereet berene berere bermet berner bernet berrer berret bertem bertre berube beteem betere betete betrue bettee betten better betune beturn betutu beumer beuren beurre breere bremen bremer brener brenne brette breuer brubru bruern bruner brunet brunne bruree brutum bubber bububu buerne bumbee bummer bunnet bunter burbet burbur burn-e burner burnet burnum burnut burree burren burrer burret burutu butene butere butner butnet butten butter ebbert ebenum eburru eburum eebree eenrum embnet embree embrue embrun embute emeere emeter emeute emmene emmert emmett emmure enbene enmure enteer enteme entent enter- entere enterm entete entre- entree entrer entune enumer erbent erbree erenet eretum ernee ernute errett eterne ettutu eutere m-tree mbembe meerut meeten meeter meetme meetre member membre mememe memere meneen meneer mennen mennum mentee mentum menuet menure merete mermen mermer mermet merner merrem merren merret merten merter mertun merure meteer metnet metrer metrum metten metter mettet mettur meurte mtuner muerte muette mummer munnur munter murene murmur murree murren murten murter mutere mutten mutter muttur mutune mutuum muumuu nberet nebber nebeur neener nemrem nemrut nennur nereum nerrer netmen netter nettur neuent neuere neueue neumer neuner neuter ntuntu nubber nuberu nuenen number numbre numeer nummen nummer nummet nunter nutter r-tree re-run rebent reburn rebute remeet remene rement remete remeue remune renner rennet renren rentee renter rerent reteer reteet retene retent retenu retere reterm retree retret retter rettur retube retune return returu reuben reuere reumen reuter reutte reutum rubbee rubber rubent rubrum rubutu rueben ruente rumber rumbur rummer runner runnet rurutu ruttee rutten rutter rutube t-tree t-tube teebee teemer teener teerme teetee teeter tembre temene temere tenbun tenent teneur tenner tennet tennur tenten tenter tenure tereen terene terete termen termer terner terren terrer terret terter tertre tetete tetter tntnet treben trebur treene treete tremet trenet trenne trente tretee trette treuen treunt truett trumbe truten ttrent tubber tubmen tumer tummer tumtum tunner tuntum turben turbet tureen turmer turmut turnen turner turnet turnme turret turrum turtur tururu tuteur tutter tuttut tutume u-tube u-turn ubuntu ummern umteen un-men unbeen unbene unbent unburn unmeet unmute unrent unteem untent untree untrue untrum untune unturn ureter urette urturn uteute utnume