bbb bbg bbi bbk bbn bbo bgb bgg bgi bgk bgn bgo bgz bi- bib big bii bik bin bio biz bkb bkg bkk bkn bko bnb bng bni bnk bnn bno bnz bob bog boi bok bon boo boz bzn bzo bzz gbg gbi gbk gbn gbo gbz ggb ggg ggi ggn ggo ggz gib gig gii gik gin gio giz gkb gkn gko gnb gni gnn gno gob gog goi gok gon goo goz gzo ibb ibg ibi ibk ibn ibo ibz igb igg igi igk ign igo iib iii iin iio ikb iki ikk iko in- inb ing ini ink inn ino io- iob iog ioi ion ioo izi izo izz k-z kbb kbi kbk kbn kbo kbz kgb kgi kgo kib kig kii kik kin kio kiz kkb kki kkk kkn kn- kng kni knk knn kno kob kog koi kok kon koo koz kzo n-i nbb nbg nbi nbk nbn nbo ngb ngg ngi ngk ngn ngo nib nig nii nik nin nio niz nki nkk nkn nko nnb nng nni nnk nnn nno nnz no- nob nog noi nok non noo noz nzb nzg nzi nzo nzz o-i ob- obb obg obi obk obn obo ogg ogi ogn ogo oib oii oik oin oio oiz okb okg oki okk oko on- onb ong oni onk onn ono oo- oob oog ooi ook oon ooo ozo ozz z-g zbb zgb zgg zgi zib zig zik zin zio ziz znn zno zo- zob zog zoi zok zon zoo zzz