bbbb bhut bhuu bmnh bntm bttb bubb bubu buhy bum- bumb bunb bunn bunt bunu but- butt buty buyu byth byun hbtu hhhh hmhb hmmm hmun hnny hntb httm hubb huby huhn huhu humh humm hunh hunt huny huth hutt hutu huty huub huyt hymn hymy hynt hyun mhmm mmhm mmmh mmmm mmun mmyy mnbb mntb mntn mtnt muhu mumm mumu mumy munn munt munu muth mutt mutu muut mybb mymy mynt myth nbhm nbty nhnn nmnh nmnt nmtb nnmt nnnn nntn nthm nthn ntht ntnu nttm nuby numb numm numt numu nunn nunt nuny nuth nutt nutu nyht nynt nyny nytb nyth thmb thmt thnt thtb thum thun thuy thyh thym thyn tmnt tmtt tnut ttbb tttt tubb tubu tuht tuhu tumb tumu tunb tunn tunu tuny tutt tutu tuty tuum tuyn tyht tynt tyny tytt tyty tyyn uhuh umb- umut untb unth unty unum unut utby utmb uttu uuuu uuyn ytht yubu yuny yutu yuty yuyu yyyy