a-a aaa aam aao aar aav ama amm amo amr amv aoa aom aoo aor aov ar- ara arm aro arr arv av- ava avm avo avr m-o m-r m-v maa mam mao mar mav mma mmm mmo mmr mmv moa mom moo mor mov mra mrm mro mrr mrv mva mvm mvo mvr mvv oaa oam oao oar oav om- oma omm omo omr omv oo- ooa oom ooo oor oov or- ora orm oro orr orv ov- ova ovo ovv ra- raa ram rao rar rav rma rmm rmo rmr rmv roa rom roo ror rov rra rrm rrr rva rvm rvo rvr rvv v-a vaa vam vao var vav vm- vma vmm vmo vmr voa vom voo vor vov vra vrm vrr vva vvm vvo vvr vvv