bbb bbe bbi bbm bbo be- beb bee bei bem beo bev bi- bib bie bii bim bio biv bmb bme bmi bmm bmo bmv bob boe boi bom boo bov bvb bve bvi bvm bvo bvv ebb ebe ebi ebm ebo ebv eeb eee eem eeo eev eib eie eii eim eio eiv em- emb eme emi emm emo emv eo- eob eoe eoi eom eoo evb eve evi evm evo evv i-v ibb ibe ibi ibm ibo ibv ie- iee iei iem iev iib iie iii iim iio im- imb ime imi imm imo imv io- iob ioe ioi iom ioo iov ivb ive ivi ivo ivv m-o m-v mbb mbe mbi mbm mbo mbv meb mee mei mem meo mev mi- mib mie mii mim mio miv mmb mme mmi mmm mmo mmv mob moe moi mom moo mov mvb mve mvi mvm mvo mvv o-i ob- obb obe obi obm obo obv oeb oee oei oem oeo oib oie oii oim oio oiv om- omb ome omi omm omo omv oo- oob ooi oom ooo oov ov- ovb ove ovi ovo ovv v-e vbi vbm vbo vbv veb vee vei vem veo vi- vib vie vii vim vio viv vm- vmi vmm vmo vob voe voi vom voo vov vvb vvi vvm vvo vvv