bbb bbi bbm bbn bbo bi- bib bii bim bin bio bmb bmi bmm bmn bmo bnb bni bnn bno bob boi bom bon boo ibb ibi ibm ibn ibo iib iii iim iin iio im- imb imi imm imn imo in- inb ini inm inn ino io- iob ioi iom ion ioo m-o mbb mbi mbm mbo mi- mib mii mim min mio mmb mmi mmm mmn mmo mnb mni mnm mnn mno mob moi mom mon moo n-i nbb nbi nbm nbn nbo nib nii nim nin nio nmb nmi nmm nmn nmo nnb nni nnm nnn nno no- nob noi nom non noo o-i ob- obb obi obm obn obo oib oii oim oin oio om- omb omi omm omn omo on- onb oni onn ono oo- oob ooi oom oon ooo