-er -ey b-u bbb bbc bbe bbm bbr bbs bbu bby bcb bcc bce bcm bcr bcs bcu bcy be- beb bec bee bem ber bes beu bey bmb bmc bme bmm bmr bms bmu brb bre brm brr brs bru bry bsb bsc bse bsm bsr bss bsu bsy bub buc bue bum bur bus buu buy by- byc bye bym byr bys byu c-- cbb cbc cbe cbm cbr cbs cbu cby ccb ccc cce ccm ccr ccs ccu ce- ceb cec cee cem cer ces ceu cey cmb cmc cme cmm cmr cms cmu cmy crb crc cre crm crr crs cru cry csb csc cse csm csr css csu csy cub cuc cue cum cur cus cuu cuy cyb cyc cye cym cyr cys ebb ebc ebe ebm ebr ebs ebu eby ec- ecb ecc ece ecm ecr ecs ecu eeb eec eee eem eer ees eey em- emb emc eme emm emr ems emu erb erc ere erm err ers eru ery es- esb esc ese esm esr ess esu esy eu- eub euc eue eur eus eyc eye eym eyr eys m-r mbb mbc mbe mbm mbr mbs mbu mc- mcb mcc mce mcm mcr mcs mcu meb mec mee mem mer mes meu mey mmb mmc mme mmm mmr mms mmu mrb mrc mre mrm mrr mrs mru mry msb msc mse msm msr mss msu msy mub muc mue mum mur mus muu muy my- myb myc mye mym myr mys myu rbb rbc rbe rbm rbr rbs rbu rcb rcc rce rcm rcr rcs rcu re- reb rec ree rem rer res reu rey rmb rmc rme rmm rmr rms rrb rrc rrm rrr rrs rru rsb rsc rse rsm rsr rss rsu rub ruc rue rum rur rus ruu ruy ry- ryc rye rym ryr rys ryu ryy sbb sbc sbe sbm sbr sbs sbu sby scb scc sce scm scr scs scu se- seb sec see sem ser ses seu sey smb smc sme smm smr sms smu smy sr- srb src sre srm srr srs sry ss- ssb ssc sse ssm ssr sss ssu sub suc sue sum sur sus suu suy sy- syb syc sye sym syr sys syu ubb ubc ube ubr ubs ubu uby ucb ucc uce ucm ucr ucs ucu ueb uec uee uem uer ues uey um- umb umc ume umm umr ums umu ur- urb urc ure urm urr urs uru ury usb usc use usm usr uss usu uuc uue uum uur uus uuu uyc uys uyu ybc ybe ybm ybr ybs yby ycc yce ycs ycu ycy yeb yec yee yem yer yes yey ymc yme ymm yms yrc yre yrs yru ysb ysc yse ysm ysr yss ysu ysy yue yum yur yus yuu yuy yyb yyc yye yys yyu yyy