b-u bbb bbl bbn bbu blb bll bln blu blz bnb bnl bnn bnu bnz bub bul bun buu buz bzn bzu bzz lbb lbl lbu llb lll lln llu llz lnb lnl lnn lnu lub lul lun luu luz lzu nbb nbl nbn nbu nlb nll nln nlu nlz nnb nnl nnn nnu nnz nub nul nun nuu nzb nzz ubb ubl ubn ubu ulb ull uln ulu un- unb unl unn unu uun uuu uzb uzu zbb zbl znn zub zul zun zuz zzz

bbbb bblb blub bubb bubu bulb bull bulu bulz bunb bunn bunu bunz buuz buzz bzzz llll lull lulu lulz lunn nnnn nubl null nunn ulul unuz uulu uuuu uzbl uzun zubu zull zulu zulz zunz zuul zuun zuzu zzzz

bulb- bull- bulul bulun bunun lubun lubz lulul luzzu nu-nu nunun nuzul ululu unnun uuuuu zu-zu zzzzz

bbbbbb blublu bububu bulbul lunlun unlull

bbbbbbb

bbbbbbbb buzzbuzz

buln-buln

buzzbuzzbuzz

buzz-buzz-buzz

bbbbbbbbbbbbbbb bzzzzzzzzzzzzzz