-er -ey bbb bbc bbe bbm bbo bbr bbs bby bcb bcc bce bcm bco bcr bcs bcy be- beb bec bee bem beo ber bes bey bmb bmc bme bmm bmo bmr bms bob boc boe bom boo bor bos boy brb bre brm bro brr brs bry bsb bsc bse bsm bso bsr bss bsy by- byc bye bym byo byr bys c-- cbb cbc cbe cbm cbo cbr cbs cby ccb ccc cce ccm cco ccr ccs ce- ceb cec cee cem ceo cer ces cey cmb cmc cme cmm cmo cmr cms cmy co- cob coc coe com coo cor cos coy crb crc cre crm cro crr crs cry csb csc cse csm cso csr css csy cyb cyc cye cym cyo cyr cys ebb ebc ebe ebm ebo ebr ebs eby ec- ecb ecc ece ecm eco ecr ecs eeb eec eee eem eeo eer ees eey em- emb emc eme emm emo emr ems eo- eob eoc eoe eom eoo eor eos erb erc ere erm ero err ers ery es- esb esc ese esm eso esr ess esy eyc eye eym eyo eyr eys m-o m-r mbb mbc mbe mbm mbo mbr mbs mc- mcb mcc mce mcm mco mcr mcs meb mec mee mem meo mer mes mey mmb mmc mme mmm mmo mmr mms mob moc moe mom moo mor mos moy mrb mrc mre mrm mro mrr mrs mry msb msc mse msm mso msr mss msy my- myb myc mye mym myo myr mys ob- obb obc obe obm obo obr obs oby oc- ocb occ ocm oco ocr ocs oeb oec oee oem oeo oer oes oey om- omb omc ome omm omo omr oms omy oo- oob ooc oom ooo oor oos or- orb orc ore orm oro orr ors ory os- osb osc ose osm oso osr oss oye oyo oys rbb rbc rbe rbm rbo rbr rbs rcb rcc rce rcm rco rcr rcs re- reb rec ree rem reo rer res rey rmb rmc rme rmm rmo rmr rms rob roc roe rom roo ror ros roy rrb rrc rrm rrr rrs rsb rsc rse rsm rso rsr rss ry- ryc rye rym ryo ryr rys ryy sbb sbc sbe sbm sbo sbr sbs sby scb scc sce scm sco scr scs se- seb sec see sem seo ser ses sey smb smc sme smm smo smr sms smy sob soc soe som soo sor sos soy sr- srb src sre srm sro srr srs sry ss- ssb ssc sse ssm sso ssr sss sy- syb syc sye sym syr sys ybc ybe ybm ybr ybs yby ycc yce yco ycs ycy yeb yec yee yem yeo yer yes yey ymc yme ymm ymo yms yob yoc yoe yom yoo yor yos yoy yrc yre yro yrs ysb ysc yse ysm yso ysr yss ysy yyb yyc yye yys yyy