bbbb bbeb bcbc bcbg bccc bcec bcvo bebb bebe bebo beeb beeg begg bego beo- bevo bobb bobe bobo boce boco boec boee boeo boge bogg bogo boob booc booe boog bove bovo c-bo cbbc cbcc cbce cbec cbee cbgb cbvb cbve cbvg ccbc cccb cccc cccv ccee ccgc ccob ccoc ccvo cec- cece ceco ceeb ceec cege cego cevo cgcc cgcg cobb cobe cobo coce coco cogo coob cove covo cvcc ebbc ebbo ebcc eboe eboo ecbc ecbe eccb eccc ecce ecco eco- ecog eeee eeoc egbe egcc egcg egec egee eggb egge eggo ego- egov evoe evoo gbbo gc-c gcbc gccc gcov gebe gece gege gegg gego geo- geog geve gevo gggg gobe gobo goce gogo goog gove gvvv o-eo obbo obec oboe ocbc occc oce ocee oec- oecc oeec oegb ogb ogbe ogee ogge ogog oobe oooo ovee ovo- ovoo vbcc vecc vege veve vevo vgcc voce voge vooc voog vvob vvog vvvv