-er a-a a-i aaa aae aag aai aam aar aax aea aee aeg aei aem aer aex ag- aga age agg agi agm agr agx ai- aia aie aig aii aim air aix ama ame amg ami amm amr amx ar- ara are arg ari arm arr arx ax- axa axe axi axm axr axx eaa eae eag eai eam ear eax eea eee eeg eem eer eex ega ege egg egi egm egr egx eia eie eig eii eim eir eix em- ema eme emg emi emm emr emx era ere erg eri erm err ex- exa exe exi exr exx gaa gae gag gai gam gar ge- gea gee geg gei gem ger gex gga ggg ggi ggm ggr gia gie gig gii gim gir gma gme gmg gmi gmm gmr gmx gra gre grg gri grm grr grx gxa ia- iaa iae iag iai iam iar ie- iea iee ieg iei iem ier iex iga ige igg igi igm igr iia iie iii iim iir iix im- ima ime img imi imm imx ir- ira ire irg iri irm irr irx ixe ixi m-r maa mae mag mai mam mar max mea mee meg mei mem mer mex mga mge mgi mgm mgr mgx mi- mia mie mig mii mim mir mix mma mme mmg mmi mmm mmr mmx mra mre mrg mri mrm mrr mrx mxa mxi mxr ra- raa rae rag rai ram rar rax re- rea ree reg rei rem rer rex rga rge rgg rgi rgr rgx ria rie rig rii rim rir rix rma rme rmg rmi rmm rmr rmx rra rrg rri rrm rrr rxr xaa xag xam xar xee xeg xem xer xex xge xgi xia xie xii xix xma xmg xmi xmm xmr xmx xrx xxi xxx