-er -ey a-a a-c aaa aac aae aam aar aax aay ac- aca acc ace acm acr acx acy aea aec aee aem aer aex aey ama amc ame amm amr amx amy ar- ara arc are arm arr arx ary ax- axa axe axm axr axx ay- aya ayc aye ayr ayx c-- caa cac cae cam car cax cay cca ccc cce ccm ccr ccx ce- cea cec cee cem cer cex cey cma cmc cme cmm cmr cmx cmy cra crc cre crm crr crx cry cxc cxr cxx cya cyc cye cym cyr eaa eac eae eam ear eax ec- eca ecc ece ecm ecr ecx eea eec eee eem eer eex eey em- ema emc eme emm emr emx era erc ere erm err ery ex- exa exc exe exr exx exy eya eyc eye eym eyr m-r maa mac mae mam mar max may mc- mca mcc mce mcm mcr mcx mea mec mee mem mer mex mey mma mmc mme mmm mmr mmx mra mrc mre mrm mrr mrx mry mxa mxc mxr my- mya myc mye mym myr myx ra- raa rac rae ram rar rax ray rca rcc rce rcm rcr rcx re- rea rec ree rem rer rex rey rma rmc rme rmm rmr rmx rra rrc rrm rrr rxr ry- rya ryc rye rym ryr ryy xaa xac xam xar xcr xcx xee xem xer xex xma xmc xmm xmr xmx xrc xrx xry xxx xxy xyr xyy yaa yac yae yam yar yax yay yca ycc yce ycy yea yec yee yem yer yex yey yma ymc yme ymm yra yrc yre yxa yxe yxy yyc yye yyy