a-a aaa aam aan aar aau aax ama amm amn amr amu amx an- ana anm ann anr anu anx ar- ara arm arn arr aru arx au- aua aum aun aur aux ax- axa axm axn axr axx m-r maa mam man mar mau max mma mmm mmn mmr mmu mmx mna mnm mnn mnr mnu mra mrm mrn mrr mru mrx mua mum mun mur muu mux mxa mxn mxr mxu naa nam nan nar nau nax nma nmm nmn nmr nmu nna nnm nnn nnu nra nrm nrn nrr nru nrx nua num nun nur nuu nux ra- raa ram ran rar rau rax rma rmm rmn rmr rmx rna rnm rnn rnr rnu rra rrm rrn rrr rru rua rum run rur ruu rux rxr ua- uaa uam uan uar uau um- uma umm umn umr umu un- una unm unn unr unu unx ur- ura urm urn urr uru urx uua uum uun uur uuu uxr uxu xaa xam xan xar xau xma xmm xmr xmu xmx xna xnu xrx xun xxx