b-u bbb bbl bbn bbr bbu blb bll bln blr blu bnb bnl bnn bnr bnu brb brl brn brr bru bub bul bun bur buu lbb lbl lbr lbu llb lll lln llr llu lnb lnl lnn lnr lnu lrb lrn lrr lru lub lul lun lur luu nbb nbl nbn nbr nbu nlb nll nln nlr nlu nnb nnl nnn nnu nrb nrl nrn nrr nru nub nul nun nur nuu rbb rbl rbn rbr rbu rll rln rlr rlu rnb rnn rnr rnu rrb rrl rrn rrr rru rub run rur ruu ubb ubl ubn ubr ubu ulb ull uln ulr ulu un- unb unl unn unr unu ur- urb url urn urr uru uun uur uuu

bbbb bblb blub blur bnrr brrr brun bubb bubu bulb bull bulu bunb bunn bunu bur- burb burl burn burr buru lblr llll lrrr lull lulu lunn nlrb nnnn nrlb nrrl nubl null nunn nurl nurn nurr nuru rbbb rbbr rnbr rrrr rrun rubb rubu rull runn ruru ruun ullr ulul urun urur uulu uuuu

blurb blurr brrrr brull brunn bruun bulb- bull- bulul bulun bunun burn- burru burun lubun lubur lulul lurun nu-nu nunun nurlu nurun ullur ululu uluru unnun unnur unrun unurn urubu uuuuu

bbbbbb blublu brubru bububu bulbul burbur lunlun lurulu nurulu unblur unburn unlull

bbbbbbb burunlu

bbbbbbbb buruburu

buln-buln runrunrun

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