-er -ey a-a a-b a-c aaa aab aac aae aam aar aau aay ab- aba abb abc abe abm abr abu aby ac- aca acb acc ace acm acr acu acy aea aeb aec aee aem aer aeu aey ama amb amc ame amm amr amu amy ar- ara arb arc are arm arr aru ary au- aua aub auc aue aum aur ay- aya ayc aye ayr ayu b-u baa bab bac bae bam bar bau bay bba bbb bbc bbe bbm bbr bbu bby bca bcb bcc bce bcm bcr bcu bcy be- bea beb bec bee bem ber beu bey bma bmb bmc bme bmm bmr bmu bra brb bre brm brr bru bry bua bub buc bue bum bur buu buy by- bya byc bye bym byr byu c-- caa cab cac cae cam car cau cay cba cbb cbc cbe cbm cbr cbu cby cca ccb ccc cce ccm ccr ccu ce- cea ceb cec cee cem cer ceu cey cma cmb cmc cme cmm cmr cmu cmy cra crb crc cre crm crr cru cry cua cub cuc cue cum cur cuu cuy cya cyb cyc cye cym cyr eaa eab eac eae eam ear eau eba ebb ebc ebe ebm ebr ebu eby ec- eca ecb ecc ece ecm ecr ecu eea eeb eec eee eem eer eey em- ema emb emc eme emm emr emu era erb erc ere erm err eru ery eu- eua eub euc eue eur eya eyc eye eym eyr m-r maa mab mac mae mam mar mau may mba mbb mbc mbe mbm mbr mbu mc- mca mcb mcc mce mcm mcr mcu mea meb mec mee mem mer meu mey mma mmb mmc mme mmm mmr mmu mra mrb mrc mre mrm mrr mru mry mua mub muc mue mum mur muu muy my- mya myb myc mye mym myr myu ra- raa rab rac rae ram rar rau ray rba rbb rbc rbe rbm rbr rbu rca rcb rcc rce rcm rcr rcu re- rea reb rec ree rem rer reu rey rma rmb rmc rme rmm rmr rra rrb rrc rrm rrr rru rua rub ruc rue rum rur ruu ruy ry- rya ryc rye rym ryr ryu ryy ua- uaa uab uac uae uam uar uau uay uba ubb ubc ube ubr ubu uby uca ucb ucc uce ucm ucr ucu uea ueb uec uee uem uer uey um- uma umb umc ume umm umr umu ur- ura urb urc ure urm urr uru ury uua uuc uue uum uur uuu uyc uyu yaa yab yac yae yam yar yau yay ybc ybe ybm ybr yby yca ycc yce ycu ycy yea yeb yec yee yem yer yey yma ymc yme ymm yra yrc yre yru yua yue yum yur yuu yuy yyb yyc yye yyu yyy