bbbb bbbs bbhs bhhs bhms bhut bhuu bmhs bmts bmus bshs bsms bsmt bssm bsts bths btss bttb btus bubb bubs bubu buhs bum- bumb bums bush buss bust busu but- buts butt buus hbbs hbhs hbms hbss hbtu hhhh hhhs hhms hhus hmbs hmhb hmhs hmmm hmms hmsm hshs hsmm hsts hths htms httm hubb hubs huhs huhu humh humm hums hush huss hust huth huts hutt hutu huub huus mbbs mbhs mbms mbus mhhs mhmm mmhm mmhs mmmh mmmm mmms mmst mmsu mmts mmus mshb mshs msht msmb msmm msms msmu mssm msst msth msts msus mtbs mths mtss mtst mtts mubs muhs muhu mumm mums mumu mush muss must musu muth muts mutt mutu muut sbbs sbhs sbst sbus shbm shbs shbt shhh shhs shm- shts shub shum shus shut shuu smbh smhs smsh smss smth smtu smus smut sshs sssb sssh sssm ssss sstb ssth ssts stbs sths stms stmt stsm stss stub stum stus stut sub- subb subh subm subs suhb sum- sums sumu sus- suss sust susu sutu suum suus tbbs tbhs tbst thbs thmb thms thmt thss thtb thts thum thus tmhs tmtt tshb tshs tssm tsst tstm tsts tsum ttbb ttms ttss tttt tubb tubs tubu tuhs tuht tuhu tumb tums tumu tush tusm tuss tust tuts tutt tutu tuum uhss uhuh umb- umhs umms umsu umts umus umut usbs ushs ushu usmm usms ussb usss usst ussu ustb ustm usts usus utmb uttu uuuu