-er a-a a-b aaa aab aad aae aaj aam aao aar aas ab- aba abb abd abe abj abm abo abr abs ad- ada adb add ade adj adm ado adr ads aea aeb aed aee aej aem aeo aer aes aja ajb ajd aje ajj ajm ajo ajr ajs ama amb amd ame amm amo amr ams aoa aob aod aoe aoj aom aoo aor aos ar- ara arb ard are arj arm aro arr ars as- asa asb asd ase asj asm aso asr ass baa bab bad bae baj bam bao bar bas bba bbb bbd bbe bbm bbo bbr bbs bda bdb bdd bde bdj bdm bdo bdr bds be- bea beb bed bee bem beo ber bes bja bjd bjj bjm bjr bjs bma bmb bmd bme bmj bmm bmo bmr bms boa bob bod boe boj bom boo bor bos bra brb brd bre brj brm bro brr brs bsa bsb bsd bse bsj bsm bso bsr bss daa dab dad dae daj dam dao dar das dba dbb dbd dbe dbm dbo dbr dbs dda ddb ddd dde ddm ddo ddr dds de- dea deb ded dee dej dem deo der des dj- dja djb djd dje djm djo djs dma dmb dmd dme dmm dmo dmr dms doa dob dod doe doj dom doo dor dos dra drb drd dre drj drm dro drr drs dsa dsb dsd dse dsj dsm dso dsr dss eaa eab ead eae eaj eam eao ear eas eba ebb ebd ebe ebj ebm ebo ebr ebs ed- eda edb edd ede edj edm edo edr eds eea eeb eed eee eem eeo eer ees eja ejd ejo em- ema emb emd eme emm emo emr ems eo- eoa eob eod eoe eom eoo eor eos era erb erd ere erm ero err ers es- esa esb esd ese esm eso esr ess j-d jaa jab jad jae jaj jam jao jar jas jba jbj jbm jbo jbr jbs jda jdb jde jdm jdo jdr jds jea jeb jed jee jej jem jeo jer jes jja jjb jjj jjr jjs jma jmb jmd jme jmj jmm jmo jmr jms joa job jod joe joj jom joo jor jos jra jrb jrm jro jrr jrs jsa jsb jsd jse jsj jsm jso jsr jss m-o m-r maa mab mad mae maj mam mao mar mas mba mbb mbd mbe mbj mbm mbo mbr mbs mda mdb mdd mde mdj mdm mdo mdr mds mea meb med mee mej mem meo mer mes mjb mjd mje mjj mjm mjr mjs mma mmb mmd mme mmj mmm mmo mmr mms moa mob mod moe mom moo mor mos mra mrb mrd mre mrj mrm mro mrr mrs msa msb msd mse msj msm mso msr mss oaa oab oad oae oaj oam oao oar oas ob- oba obb obd obe obj obm obo obr obs oda odb odd ode odm odo odr ods oea oeb oed oee oem oeo oer oes oja ojb ojd oje ojm ojo ojs om- oma omb omd ome omj omm omo omr oms oo- ooa oob ood oom ooo oor oos or- ora orb ord ore orm oro orr ors os- osa osb osd ose osj osm oso osr oss ra- raa rab rad rae raj ram rao rar ras rba rbb rbd rbe rbm rbo rbr rbs rda rdb rdd rde rdj rdm rdo rdr rds re- rea reb red ree rem reo rer res rja rjm rjr rma rmb rmd rme rmm rmo rmr rms roa rob rod roe roj rom roo ror ros rra rrb rrd rrm rrr rrs rsa rsb rsd rse rsj rsm rso rsr rss saa sab sad sae saj sam sao sar sas sba sbb sbd sbe sbj sbm sbo sbr sbs sda sdb sdd sde sdj sdm sdo sdr sds se- sea seb sed see sej sem seo ser ses sja sjb sjd sje sjj sjm sjr sjs sma smb smd sme smm smo smr sms soa sob sod soe soj som soo sor sos sr- sra srb srd sre srj srm sro srr srs ss- ssa ssb ssd sse ssj ssm sso ssr sss