bbb bbg bbi bbn bbo bgb bgg bgi bgn bgo bi- bib big bii bin bio bnb bng bni bnn bno bob bog boi bon boo gbg gbi gbn gbo ggb ggg ggi ggn ggo gib gig gii gin gio gnb gni gnn gno gob gog goi gon goo ibb ibg ibi ibn ibo igb igg igi ign igo iib iii iin iio in- inb ing ini inn ino io- iob iog ioi ion ioo n-i nbb nbg nbi nbn nbo ngb ngg ngi ngn ngo nib nig nii nin nio nnb nng nni nnn nno no- nob nog noi non noo o-i ob- obb obg obi obn obo ogg ogi ogn ogo oib oii oin oio on- onb ong oni onn ono oo- oob oog ooi oon ooo