bbb bbi bbm bbo bbx bi- bib bii bim bio biv bix bmb bmi bmm bmo bmv bmx bob boi bom boo bov box bvb bvi bvm bvo bvv bxb bxi bxm bxo bxx i-v ibb ibi ibm ibo ibv ibx iib iii iim iio iix im- imb imi imm imo imv imx io- iob ioi iom ioo iov ivb ivi ivo ivv ivx ixi m-o m-v mbb mbi mbm mbo mbv mbx mi- mib mii mim mio miv mix mmb mmi mmm mmo mmv mmx mob moi mom moo mov mox mvb mvi mvm mvo mvv mxi o-i ob- obb obi obm obo obv obx oib oii oim oio oiv om- omb omi omm omo omv omx oo- oob ooi oom ooo oov oox ov- ovb ovi ovo ovv ox- oxb oxi oxo oxx vbi vbm vbo vbv vi- vib vii vim vio viv vix vm- vmi vmm vmo vmx vob voi vom voo vov vox vvb vvi vvm vvo vvv vxv xbx xii xio xiv xix xmi xmm xmo xmx xoi xom xoo xov xox xvi xxi xxo xxv xxx