a-a a-b a-i aaa aab aai aam aao aav ab- aba abb abi abm abo abv ai- aia aib aii aim aio aiv ama amb ami amm amo amv aoa aob aoi aom aoo aov av- ava avb avi avm avo baa bab bai bam bao bav bba bbb bbi bbm bbo bi- bia bib bii bim bio biv bma bmb bmi bmm bmo bmv boa bob boi bom boo bov bva bvb bvi bvm bvo bvv i-v ia- iaa iab iai iam iao iav iba ibb ibi ibm ibo ibv iia iib iii iim iio im- ima imb imi imm imo imv io- ioa iob ioi iom ioo iov iva ivb ivi ivo ivv m-o m-v maa mab mai mam mao mav mba mbb mbi mbm mbo mbv mi- mia mib mii mim mio miv mma mmb mmi mmm mmo mmv moa mob moi mom moo mov mva mvb mvi mvm mvo mvv o-i oaa oab oai oam oao oav ob- oba obb obi obm obo obv oia oib oii oim oio oiv om- oma omb omi omm omo omv oo- ooa oob ooi oom ooo oov ov- ova ovb ovi ovo ovv v-a vaa vab vai vam vao vav vba vbi vbm vbo vbv vi- via vib vii vim vio viv vm- vma vmi vmm vmo voa vob voi vom voo vov vva vvb vvi vvm vvo vvv