a-a aaa aam aar aau aax ama amm amr amu amx ar- ara arm arr aru arx au- aua aum aur aux ax- axa axm axr axx m-r maa mam mar mau max mma mmm mmr mmu mmx mra mrm mrr mru mrx mua mum mur muu mux mxa mxr mxu ra- raa ram rar rau rax rma rmm rmr rmx rra rrm rrr rru rua rum rur ruu rux rxr ua- uaa uam uar uau um- uma umm umr umu ur- ura urm urr uru urx uua uum uur uuu uxr uxu xaa xam xar xau xma xmm xmr xmu xmx xrx xxx