a-a a-b a-i aaa aab aai aam aan aao aav ab- aba abb abi abm abn abo abv ai- aia aib aii aim ain aio aiv ama amb ami amm amn amo amv an- ana anb ani anm ann ano anv aoa aob aoi aom aon aoo aov av- ava avb avi avm avn avo baa bab bai bam ban bao bav bba bbb bbi bbm bbn bbo bi- bia bib bii bim bin bio biv bma bmb bmi bmm bmn bmo bmv bna bnb bni bnn bno bnv boa bob boi bom bon boo bov bva bvb bvi bvm bvn bvo bvv i-v ia- iaa iab iai iam ian iao iav iba ibb ibi ibm ibn ibo ibv iia iib iii iim iin iio im- ima imb imi imm imn imo imv in- ina inb ini inm inn ino inv io- ioa iob ioi iom ion ioo iov iva ivb ivi ivo ivv m-o m-v maa mab mai mam man mao mav mba mbb mbi mbm mbo mbv mi- mia mib mii mim min mio miv mma mmb mmi mmm mmn mmo mmv mna mnb mni mnm mnn mno moa mob moi mom mon moo mov mva mvb mvi mvm mvn mvo mvv n-i naa nab nai nam nan nao nav nba nbb nbi nbm nbn nbo nbv nia nib nii nim nin nio niv nma nmb nmi nmm nmn nmo nna nnb nni nnm nnn nno nnv no- noa nob noi nom non noo nov nva nvb nvi nvm nvn nvv o-i oaa oab oai oam oan oao oav ob- oba obb obi obm obn obo obv oia oib oii oim oin oio oiv om- oma omb omi omm omn omo omv on- ona onb oni onn ono oo- ooa oob ooi oom oon ooo oov ov- ova ovb ovi ovo ovv v-a vaa vab vai vam van vao vav vba vbi vbm vbo vbv vi- via vib vii vim vin vio viv vm- vma vmi vmm vmn vmo vn- vna vni vnm vno vnv voa vob voi vom von voo vov vva vvb vvi vvm vvo vvv