-er -ey bbb bbe bbm bbo bbr bbs bby be- beb bee bem beo ber bes bey bez bmb bme bmm bmo bmr bms bmz bob boe bom boo bor bos boy boz brb bre brm bro brr brs bry brz bsb bse bsm bso bsr bss bsy by- bye bym byo byr bys byz bze bzo bzr bzs bzz ebb ebe ebm ebo ebr ebs eby eeb eee eem eeo eer ees eey em- emb eme emm emo emr ems eo- eob eoe eom eoo eor eos erb ere erm ero err ers ery erz es- esb ese esm eso esr ess esy eye eym eyo eyr eys eze ezo ezr ezs ezz m-o m-r mbb mbe mbm mbo mbr mbs meb mee mem meo mer mes mey mez mmb mme mmm mmo mmr mms mmz mob moe mom moo mor mos moy moz mrb mre mrm mro mrr mrs mry mrz msb mse msm mso msr mss msy my- myb mye mym myo myr mys mzb mzm ob- obb obe obm obo obr obs oby oeb oee oem oeo oer oes oey om- omb ome omm omo omr oms omy omz oo- oob oom ooo oor oos or- orb ore orm oro orr ors ory orz os- osb ose osm oso osr oss oye oyo oys oze ozm ozo ozs ozz rbb rbe rbm rbo rbr rbs re- reb ree rem reo rer res rey rez rmb rme rmm rmo rmr rms rob roe rom roo ror ros roy roz rrb rrm rrr rrs rsb rse rsm rso rsr rss ry- rye rym ryo ryr rys ryy ryz rzb rze rzm rzo rzy sbb sbe sbm sbo sbr sbs sby se- seb see sem seo ser ses sey sez smb sme smm smo smr sms smy smz sob soe som soo sor sos soy soz sr- srb sre srm sro srr srs sry ss- ssb sse ssm sso ssr sss ssz sy- syb sye sym syr sys sze szr ybe ybm ybr ybs yby ybz yeb yee yem yeo yer yes yey yez yme ymm ymo yms yob yoe yom yoo yor yos yoy yre yro yrs ysb yse ysm yso ysr yss ysy ysz yyb yye yys yyy yyz yzb yzr yzy zbb zbm zbr zbs zby zeb zee zem zeo zer zes zez zmb zmm zms zo- zob zoe zom zoo zor zos zro zrs zse zsm zsz zym zzr zzs zzy zzz