-er -ey a-a a-b aaa aab aae aam aao aar aas aay ab- aba abb abe abm abo abr abs aby aea aeb aee aem aeo aer aes aey ama amb ame amm amo amr ams amy aoa aob aoe aom aoo aor aos ar- ara arb are arm aro arr ars ary as- asa asb ase asm aso asr ass asy ay- aya aye ayo ayr ays baa bab bae bam bao bar bas bay bba bbb bbe bbm bbo bbr bbs bby be- bea beb bee bem beo ber bes bey bma bmb bme bmm bmo bmr bms boa bob boe bom boo bor bos boy bra brb bre brm bro brr brs bry bsa bsb bse bsm bso bsr bss bsy by- bya bye bym byo byr bys eaa eab eae eam eao ear eas eba ebb ebe ebm ebo ebr ebs eby eea eeb eee eem eeo eer ees eey em- ema emb eme emm emo emr ems eo- eoa eob eoe eom eoo eor eos era erb ere erm ero err ers ery es- esa esb ese esm eso esr ess esy eya eye eym eyo eyr eys m-o m-r maa mab mae mam mao mar mas may mba mbb mbe mbm mbo mbr mbs mea meb mee mem meo mer mes mey mma mmb mme mmm mmo mmr mms moa mob moe mom moo mor mos moy mra mrb mre mrm mro mrr mrs mry msa msb mse msm mso msr mss msy my- mya myb mye mym myo myr mys oaa oab oae oam oao oar oas ob- oba obb obe obm obo obr obs oby oea oeb oee oem oeo oer oes oey om- oma omb ome omm omo omr oms omy oo- ooa oob oom ooo oor oos or- ora orb ore orm oro orr ors ory os- osa osb ose osm oso osr oss oya oye oyo oys ra- raa rab rae ram rao rar ras ray rba rbb rbe rbm rbo rbr rbs re- rea reb ree rem reo rer res rey rma rmb rme rmm rmo rmr rms roa rob roe rom roo ror ros roy rra rrb rrm rrr rrs rsa rsb rse rsm rso rsr rss ry- rya rye rym ryo ryr rys ryy saa sab sae sam sao sar sas say sba sbb sbe sbm sbo sbr sbs sby se- sea seb see sem seo ser ses sey sma smb sme smm smo smr sms smy soa sob soe som soo sor sos soy sr- sra srb sre srm sro srr srs sry ss- ssa ssb sse ssm sso ssr sss sy- sya syb sye sym syr sys yaa yab yae yam yao yar yas yay ybe ybm ybr ybs yby yea yeb yee yem yeo yer yes yey yma yme ymm ymo yms yob yoe yom yoo yor yos yoy yra yre yro yrs ysa ysb yse ysm yso ysr yss ysy yyb yye yys yyy