-er a-a aaa aae aah aam aao aar aax aea aee aeh aem aeo aer aex aha ahe ahh ahm aho ahr ahx ama ame amh amm amo amr amx aoa aoe aoh aom aoo aor aox ar- ara are arh arm aro arr arx ax- axa axe axh axm axo axr axx eaa eae eah eam eao ear eax eea eee eem eeo eer eex eha ehe ehh ehm eho ehr em- ema eme emh emm emo emr emx eo- eoa eoe eoh eom eoo eor era ere erh erm ero err ex- exa exe exh exo exr exx haa hae hah ham hao har hax he- hea hee heh hem heo her hex hha hhe hhh hhm hho hhr hma hme hmh hmm hmo hmr hmx hoa hoe hoh hom hoo hor hox hr- hra hre hrh hrm hro hrr hxm m-o m-r maa mae mah mam mao mar max mea mee meh mem meo mer mex mha mhh mhm mho mhr mhx mma mme mmh mmm mmo mmr mmx moa moe moh mom moo mor mox mra mre mrh mrm mro mrr mrx mxa mxr oaa oae oah oam oao oar oax oea oee oeh oem oeo oer oex oha ohe ohh ohm oho ohr om- oma ome omh omm omo omr omx oo- ooa ooh oom ooo oor oox or- ora ore orh orm oro orr orx ox- oxa oxo oxx ra- raa rae rah ram rao rar rax re- rea ree reh rem reo rer rex rh- rha rhe rhh rhm rho rhr rma rme rmh rmm rmo rmr rmx roa roe roh rom roo ror rox rra rrh rrm rrr rxr xaa xam xar xee xem xer xex xma xmh xmm xmo xmr xmx xoa xom xoo xor xox xrx xxo xxx