a-a aaa aam aao aar aax aay ama amm amo amr amx amy aoa aom aoo aor aox ar- ara arm aro arr arx ary ax- axa axm axo axr axx ay- aya ayo ayr ayx m-o m-r maa mam mao mar max may mma mmm mmo mmr mmx moa mom moo mor mox moy mra mrm mro mrr mrx mry mxa mxr my- mya mym myo myr myx oaa oam oao oar oax om- oma omm omo omr omx omy oo- ooa oom ooo oor oox or- ora orm oro orr orx ory ox- oxa oxo oxx oxy oya oyo ra- raa ram rao rar rax ray rma rmm rmo rmr rmx roa rom roo ror rox roy rra rrm rrr rxr ry- rya rym ryo ryr ryy xaa xam xar xma xmm xmo xmr xmx xoa xom xoo xor xox xrx xry xxo xxx xxy xyr xyy yaa yam yao yar yax yay yma ymm ymo yom yoo yor yox yoy yra yro yxa yxy yyy