bbbb bbbs bbhs bhhs bhms bhrt bhur bhut bhuu bmhs bmts bmus brhs brrm brrr brrs brsb brsr brst bruh brum brus brut bshs bsms bsmt bsrm bssm bsts bths btrt btss bttb btus bubb bubs bubu buhr buhs bum- bumb bums bur- burb burh burm burr burs burt buru bush buss bust busu but- buts butt buus hbbs hbhs hbms hbrs hbss hbtu hhhh hhhs hhms hhus hmbs hmhb hmhs hmmm hmms hmsm hrhs hrtb hshs hsmm hsts hsur hths htms httm httr hubb hubs huhs huhu humh humm hums hurr hurs hurt huru hush huss hust huth huts hutt hutu huub huus mbbs mbhs mbms mbrs mbus mhhs mhmm mhmr mmhm mmhs mmmh mmmm mmms mmst mmsu mmts mmus mrbb mrbm mrbs mrhs mrtm mrts mrtt mshb mshs msht msmb msmm msms msmu msrb msrt mssm mssr msst msth mstr msts msus mtbs mths mtrr mtss mtst mttr mtts mubs muhr muhs muhu mumm mums mumu murr murs murt muru mush muss must musu muth muts mutt mutu muut rbbb rbbr rbbs rbhs rbms rbss rbst rhhs rhsm rhum rhus rmbs rmhs rmst rmtu rrhs rrrr rrum rshs rsts rstu rsum rths rtms rtss rtts rubb rubs rubu ruhh ruhm ruhr ruhs rumb rumm rums rumt rurs ruru rush russ rust rusu ruth ruts rutt rutu sbbs sbhs sbst sbus shbm shbs shbt shhh shhs shm- shrs shts shub shum shur shus shut shuu smbh smhs smrt smsh smss smth smtu smur smus smut srhs srtr srub ssbr sshs ssrm ssrs sssb sssh sssm ssss sstb ssth ssts stbs sths stms stmt strs stru stsm stss sttr stub stum stur stus stut sub- subb subh subm subs suhb suhr sum- sums sumu sur- surr surs surt suru sus- suss sust susu sutu suum suus tbbs tbhs tbrb tbst thbs thmb thms thmt thru thsr thss thtb thtr thts thum thur thus tmbr tmhs tmtt trhs trmb trms trmu trst trtr trub trus trut truu tshb tshs tssm tssr tsst tstm tsts tsum ttbb ttms ttss tttt tubb tubr tubs tubu tuhs tuht tuhu tumb tums tumu turb turm turr turs turt turu tush tusm tuss tust tuts tutt tutu tuum uhrs uhss uhuh umb- umhs umms umsu umts umus umut urbs urrh urss ursu urth urts urum urur urus urut usbr usbs ushr ushs ushu usmm usms ussb ussr usss usst ussu ustb ustm usts usus utmb uttu uuuu