-ey a-a a-c aaa aac aae aam aas aay ac- aca acc ace acm acs acy aea aec aee aem aes aey ama amc ame amm ams amy as- asa asc ase asm ass asy ay- aya ayc aye ays c-- caa cac cae cam cas cay cca ccc cce ccm ccs ce- cea cec cee cem ces cey cma cmc cme cmm cms cmy csa csc cse csm css csy cya cyc cye cym cys eaa eac eae eam eas ec- eca ecc ece ecm ecs eea eec eee eem ees eey em- ema emc eme emm ems es- esa esc ese esm ess esy eya eyc eye eym eys maa mac mae mam mas may mc- mca mcc mce mcm mcs mea mec mee mem mes mey mma mmc mme mmm mms msa msc mse msm mss msy my- mya myc mye mym mys saa sac sae sam sas say sca scc sce scm scs se- sea sec see sem ses sey sma smc sme smm sms smy ss- ssa ssc sse ssm sss sy- sya syc sye sym sys yaa yac yae yam yas yay yca ycc yce ycs ycy yea yec yee yem yes yey yma ymc yme ymm yms ysa ysc yse ysm yss ysy yyc yye yys yyy