b-u bbb bbi bbs bbu bi- bib bii bis biu bsb bsi bss bsu bub bui bus buu ibb ibi ibs ibu iib iii iis iiu is- isb isi iss isu iu- iub iui ius sbb sbi sbs sbu sib sii sis siu ss- ssb ssi sss ssu sub sui sus suu ubb ubi ubs ubu uib uii uis uiu usb usi uss usu uus uuu

bbbb bbbs bibb bibi bibs biis bis- biss bisu bubb bubi bubs bubu buis buiu busi buss busu buus ibis ibss ibus iiii iiis iisi iisu isis issi isss issu isus iuiu iuss s-ib s-ii sbbs sbsi sbus sibi sibs sibu sisi siss sisu siui sius ssis sssb sssi ssss sub- subb subi subs suis sus- susi suss susu suus ubbi ubii ubis usbs usis ussb usss ussu usui usus uusi uuuu

bbuss bibbs bibis bibus bussu busuu iiiii is-is isisi issus issuu isuus s-bus s-iii sibiu sibsu sisis sissi sissu siusi sssss subbu subis subss suibu susus uibis ususi uusis uuuuu

bbbbbb bububu siiiii sisisi subisu ubussu

bbbbbbb bissibi sssssss

bbbbbbbb i-ii-iii

issisisis

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iiiiiiiiiiiiiiiis