a-a a-i aaa aae aai aam aas aax aea aee aei aem aes aex ai- aia aie aii aim ais aix ama ame ami amm ams amx as- asa ase asi asm ass asx ax- axa axe axi axm axs axx eaa eae eai eam eas eax eea eee eem ees eex eia eie eii eim eis eix em- ema eme emi emm ems emx es- esa ese esi esm ess esx ex- exa exe exi exs exx ia- iaa iae iai iam ias ie- iea iee iei iem ies iex iia iie iii iim iis iix im- ima ime imi imm ims imx is- isa ise isi ism iss ixe ixi maa mae mai mam mas max mea mee mei mem mes mex mi- mia mie mii mim mis mix mma mme mmi mmm mms mmx msa mse msi msm mss msx mxa mxi mxs saa sae sai sam sas sax se- sea see sei sem ses sex sia sie sii sim sis six sma sme smi smm sms smx ss- ssa sse ssi ssm sss ssx sxi sxm sxs xaa xam xas xee xem xes xex xia xie xii xis xix xma xmi xmm xms xmx xsa xsi xsm xss xxi xxx