a-a a-b a-z aaa aab aag aam aao aav aaz ab- aba abb abg abm abo abv abz ag- aga agb agg agm ago agv agz ama amb amg amm amo amv amz aoa aob aog aom aoo aov av- ava avb avg avm avo avz az- aza azb azg azm azo azz baa bab bag bam bao bav baz bba bbb bbg bbm bbo bga bgb bgg bgm bgo bgv bgz bma bmb bmg bmm bmo bmv bmz boa bob bog bom boo bov boz bva bvb bvg bvm bvo bvv bza bzo bzz gaa gab gag gam gao gav gaz gba gbg gbm gbo gbv gbz gga ggb ggg ggm ggo ggv ggz gma gmb gmg gmm gmo gmv gmz goa gob gog gom goo gov goz gva gvb gvg gvm gvo gza gzo m-o m-v maa mab mag mam mao mav maz mba mbb mbg mbm mbo mbv mga mgb mgm mgo mgv mgz mma mmb mmg mmm mmo mmv mmz moa mob mog mom moo mov moz mva mvb mvg mvm mvo mvv mvz mza mzb mzm oaa oab oag oam oao oav ob- oba obb obg obm obo obv oga ogg ogo om- oma omb omg omm omo omv omz oo- ooa oob oog oom ooo oov ov- ova ovb ovo ovv oza ozm ozo ozz v-a vaa vab vag vam vao vav vaz vba vbg vbm vbo vbv vbz vga vgg vgm vgo vgz vm- vma vmm vmo vmz voa vob vog vom voo vov voz vva vvb vvg vvm vvo vvv vvz z-g zaa zab zag zam zao zav zaz zbb zbm zbv zgb zgg zgv zma zmb zmm zo- zoa zob zog zom zoo zzz