bbbb bibb bibi bipm bipp bipu bitt bitu bmmi bmpt bpti btbp bttb bubb bubi bubu buit buiu bum- bumb bump but- buti butt buty buyi buyu byit i-by ibbm ibim ibmp ibtb ibuy ibyi iiii iiit iipm iitm iitt iium imbi imit immi immt immy impi impt impy imup ipmi ipmp ippy iput itby itim itty itum itup itym iuiu iupp iuty iypt mbim miii miit mim- mimi mimp mimy mipi mipt mit- mitb miti mitm mitt mitu mity miui miyu mmii mmmm mmpi mmpu mmyy mpit mppp mptp mubi muit mumm mump mumu mumy muti mutt mutu muut mybb mybi myi- myit mymp mymy pibb pibi piip pimi pimp pimt pipi pipp pipy piti pitt pitu pity pium pmip pmmp pmmu pmpm pmut ppib pppp pptt ptmp ptui pubu puit puiu pumi pump pumy pupi pupu pupy put- puti putt putu puy- puyi puyt pym- pymt pypy pytt tbit tbtp tibi tibu tiit tiiu timi timm timp timu tip- tipi tipp tipt tipu titi titp titt titu tium tiyi tmtt tpmt tppp tptp tput ttbb ttim tttt tubb tubu tuim tuit tuiu tumb tumi tump tumu tupi tupu tupy tuti tutt tutu tuty tuum tybi tymp typ- typp typy tyti tytt tyty tyup ubbi ubii ubit uipi umb- umbi umit umut upby upim upmy uppp uppu uppy upup utby utmb utmp utti uttu uuuu yiti yitp yput yubu yuit yumi yump yupi yutu yuty yuyu yyyy