b-u bbb bbi bbn bbr bbu bi- bib bii bin bir biu biz bnb bni bnn bnr bnu bnz brb bri brn brr bru brz bub bui bun bur buu buz bzn bzr bzu bzz ibb ibi ibn ibr ibu ibz iib iii iin iir iiu in- inb ini inn inr inu ir- irb iri irn irr iru iu- iub iui iur iuz izi izu izz n-i nbb nbi nbn nbr nbu nib nii nin nir niu niz nnb nni nnn nnu nnz nrb nri nrn nrr nru nrz nub nui nun nur nuu nzb nzi nzz rbb rbi rbn rbr rbu rib rii rin rir riz rnb rni rnn rnr rnu rnz rrb rri rrn rrr rru rub rui run rur ruu ruz rzb ubb ubi ubn ubr ubu uib uii uin uir uiu un- unb uni unn unr unu ur- urb uri urn urr uru urz uun uur uuu uzb uzi uzu zbb zbr zib zin zir ziz znn zub zui zun zur zuz zzr zzz

bbbb bbin bibb bibi biin bin- bini binn binu binz birb biri birn birr biru bizu bizz bnib bnin bnrr brin briz brrr brun bruz bubb bubi bubu buin buir buiu bunb buni bunn bunu bunz bur- burb buri burn burr buru burz buuz buzi buzz bzzz ibri iiii inni innr innu inri inui inun iri- irin irri irun iuiu n-ii nibi niir niiu nini niru niur nnnn nubi nuin nunn nuri nurn nurr nuru nuzi nzrb rbbb rbbr rib- ribu riin rinn riri rizi rizu rizz rnbr rnin rrrr rrun rubb rubi rubu ruin ruiz runi runn ruri ruru ruun ruzi ubbi ubii ubir uirr uni- unii unin unir unni unuz urbi urib urin uriu urni urri urun urur uruz uuni uuri uuuu uzin uzun uzzi zinn ziri zizi zizz zrin zubi zubr zubu zuni zunz zurb zurn zurr zuru zuun zuzu zzzz

bibin bibri binub birin birni birun birur bizin bizzi brini brinn brizz brrrr bruin bruiu bruni brunn bruri bruun bruzz buirn bunin bunun bunzi burin burn- burri burru burun buzin buzzi buzzr ibbur iiiii iiuni inbin inini inniu inrun inurn irinn nibbi niibi ninib ninur niriz nu-nu nunni nunun nurin nurri nurun ribbi ribin rinzu rizzi rubbi rubin ruiru runin runiz ruzin u-n-i u-nii ubirr unini uninn unnun unnur unrun unurn urin- urubu ururi uuuuu zbrui zibib zirin zizzi znin zu-zu zubin zzzzz

bbbbbb bibiri bibiru biribi birini bizniz bribir bribri brizzi brubru brunii bububu burbur burnin bururi bznuni inburn nibiru nibrin niburu nubbin ribbin rubini run-in runnin ruzizi unburn unizin zubiri

bbbbbbb burn-in irn-bru irurzun nib-nib uriburu zubri

bbbbbbbb bin-burn buruburu buzzbuzz i-ii-iii rubirizi zubizuri

runrunrun uzunburun

buzzbuzzbuzz

buzz-buzz-buzz

bbbbbbbbbbbbbbb bzzzzzzzzzzzzzz