bbbb bbng bcbc bcbg bccc bgon bnoc bobb bobo boco bogg bogo bonc bong bonn bono boob booc boog boon c-bo cbbc cbcc cbcn cbgb ccbc ccbn cccb cccc ccgc ccnb ccnc ccob ccoc cgcc cgcg cnbc cnco cobb cobo coco cogo con- conc cong conn cono coob coon gbbo gbon gc-c gcbc gccc gggg gncc gngc gnoo gobo gogo gon- gong gonn gono goog goon nbbc nbbo nbcc nbco ncbc nccc nccn ncnc ncoc ngon nngn nnnn nobc nobo noco nogg nogo non- nong nonn nono noo- noob noon nooo obbo obon ocbc occc occn ocon ogb ogog ogon onc- onco ongo onno onon oooo