-er -ey a-a a-c aaa aac aae aam aao aar aay ac- aca acc ace acm aco acr acy aea aec aee aem aeo aer aey ama amc ame amm amo amr amy aoa aoc aoe aom aoo aor ar- ara arc are arm aro arr ary ay- aya ayc aye ayo ayr c-- caa cac cae cam cao car cay cca ccc cce ccm cco ccr ce- cea cec cee cem ceo cer cey cma cmc cme cmm cmo cmr cmy co- coa coc coe com coo cor coy cra crc cre crm cro crr cry cya cyc cye cym cyo cyr eaa eac eae eam eao ear ec- eca ecc ece ecm eco ecr eea eec eee eem eeo eer eey em- ema emc eme emm emo emr eo- eoa eoc eoe eom eoo eor era erc ere erm ero err ery eya eyc eye eym eyo eyr m-o m-r maa mac mae mam mao mar may mc- mca mcc mce mcm mco mcr mea mec mee mem meo mer mey mma mmc mme mmm mmo mmr moa moc moe mom moo mor moy mra mrc mre mrm mro mrr mry my- mya myc mye mym myo myr oaa oac oae oam oao oar oc- oca occ ocm oco ocr oea oec oee oem oeo oer oey om- oma omc ome omm omo omr omy oo- ooa ooc oom ooo oor or- ora orc ore orm oro orr ory oya oye oyo ra- raa rac rae ram rao rar ray rca rcc rce rcm rco rcr re- rea rec ree rem reo rer rey rma rmc rme rmm rmo rmr roa roc roe rom roo ror roy rra rrc rrm rrr ry- rya ryc rye rym ryo ryr ryy yaa yac yae yam yao yar yay yca ycc yce yco ycy yea yec yee yem yeo yer yey yma ymc yme ymm ymo yoc yoe yom yoo yor yoy yra yrc yre yro yyc yye yyy