bbbb bibb bibi bipm bipp bipu bitt bitu bmmi bmpt bpti btbp bttb bubb bubi bubu buit buiu bum- bumb bump but- buti butt ibbm ibim ibmp ibtb iiii iiit iipm iitm iitt iium imbi imit immi immt impi impt imup ipmi ipmp iput itim itum itup iuiu iupp mbim miii miit mim- mimi mimp mipi mipt mit- mitb miti mitm mitt mitu miui mmii mmmm mmpi mmpu mpit mppp mptp mubi muit mumm mump mumu muti mutt mutu muut pibb pibi piip pimi pimp pimt pipi pipp piti pitt pitu pium pmip pmmp pmmu pmpm pmut ppib pppp pptt ptmp ptui pubu puit puiu pumi pump pupi pupu put- puti putt putu tbit tbtp tibi tibu tiit tiiu timi timm timp timu tip- tipi tipp tipt tipu titi titp titt titu tium tmtt tpmt tppp tptp tput ttbb ttim tttt tubb tubu tuim tuit tuiu tumb tumi tump tumu tupi tupu tuti tutt tutu tuum ubbi ubii ubit uipi umb- umbi umit umut upim uppp uppu upup utmb utmp utti uttu uuuu