b-u bbb bbg bbi bbo bbu bgb bgg bgi bgo bgu bgz bi- bib big bii bio biu biz bob bog boi boo bou boz bub bug bui buo buu buz bzo bzu bzz gbg gbi gbo gbu gbz ggb ggg ggi ggo ggu ggz gib gig gii gio giu giz gob gog goi goo gou goz gu- gub gug gui guo guu guz gzo gzu ibb ibg ibi ibo ibu ibz igb igg igi igo igu iib iii iio iiu io- iob iog ioi ioo iou iu- iub iug iui iuz izi izo izu izz o-i ob- obb obg obi obo obu ogg ogi ogo oib oii oio oiu oiz oo- oob oog ooi ooo ou- oui ouo ozo ozu ozz ubb ubg ubi ubo ubu ugb ugg ugi ugo ugu uib uig uii uio uiu uob uog uoo uug uuu uzb uzi uzo uzu z-g zbb zgb zgg zgi zib zig zio ziz zo- zob zog zoi zoo zou zub zug zui zuz zzz