-er a-a a-b aaa aab aad aae aag aam aao aar aas ab- aba abb abd abe abg abm abo abr abs ad- ada adb add ade adg adm ado adr ads aea aeb aed aee aeg aem aeo aer aes ag- aga agb agd age agg agm ago agr ags ama amb amd ame amg amm amo amr ams aoa aob aod aoe aog aom aoo aor aos ar- ara arb ard are arg arm aro arr ars as- asa asb asd ase asg asm aso asr ass baa bab bad bae bag bam bao bar bas bba bbb bbd bbe bbg bbm bbo bbr bbs bda bdb bdd bde bdg bdm bdo bdr bds be- bea beb bed bee beg bem beo ber bes bga bgb bgd bge bgg bgm bgo bgr bgs bma bmb bmd bme bmg bmm bmo bmr bms boa bob bod boe bog bom boo bor bos bra brb brd bre brg brm bro brr brs bsa bsb bsd bse bsg bsm bso bsr bss daa dab dad dae dag dam dao dar das dba dbb dbd dbe dbg dbm dbo dbr dbs dda ddb ddd dde ddg ddm ddo ddr dds de- dea deb ded dee deg dem deo der des dga dgd dge dgg dgm dgr dgs dma dmb dmd dme dmg dmm dmo dmr dms doa dob dod doe dog dom doo dor dos dra drb drd dre drg drm dro drr drs dsa dsb dsd dse dsg dsm dso dsr dss eaa eab ead eae eag eam eao ear eas eba ebb ebd ebe ebg ebm ebo ebr ebs ed- eda edb edd ede edg edm edo edr eds eea eeb eed eee eeg eem eeo eer ees ega egb egd ege egg egm ego egr egs em- ema emb emd eme emg emm emo emr ems eo- eoa eob eod eoe eog eom eoo eor eos era erb erd ere erg erm ero err ers es- esa esb esd ese esg esm eso esr ess g-d gaa gab gad gae gag gam gao gar gas gba gbd gbe gbg gbm gbo gbr gbs gda gdb gdd gde gdm gdo gdr gds ge- gea geb ged gee geg gem geo ger ges gga ggb ggd ggg ggm ggo ggr ggs gma gmb gmd gme gmg gmm gmo gmr gms goa gob god goe gog gom goo gor gos gra grb grd gre grg grm gro grr grs gsa gsb gsd gse gsg gsm gso gsr gss m-o m-r maa mab mad mae mag mam mao mar mas mba mbb mbd mbe mbg mbm mbo mbr mbs mda mdb mdd mde mdg mdm mdo mdr mds mea meb med mee meg mem meo mer mes mga mgb mgd mge mgm mgo mgr mgs mma mmb mmd mme mmg mmm mmo mmr mms moa mob mod moe mog mom moo mor mos mra mrb mrd mre mrg mrm mro mrr mrs msa msb msd mse msg msm mso msr mss oaa oab oad oae oag oam oao oar oas ob- oba obb obd obe obg obm obo obr obs oda odb odd ode odg odm odo odr ods oea oeb oed oee oeg oem oeo oer oes oga ogd oge ogg ogo ogs om- oma omb omd ome omg omm omo omr oms oo- ooa oob ood oog oom ooo oor oos or- ora orb ord ore org orm oro orr ors os- osa osb osd ose osg osm oso osr oss ra- raa rab rad rae rag ram rao rar ras rba rbb rbd rbe rbg rbm rbo rbr rbs rda rdb rdd rde rdg rdm rdo rdr rds re- rea reb red ree reg rem reo rer res rga rgb rgd rge rgg rgo rgr rgs rma rmb rmd rme rmg rmm rmo rmr rms roa rob rod roe rog rom roo ror ros rra rrb rrd rrg rrm rrr rrs rsa rsb rsd rse rsg rsm rso rsr rss saa sab sad sae sag sam sao sar sas sba sbb sbd sbe sbg sbm sbo sbr sbs sda sdb sdd sde sdg sdm sdo sdr sds se- sea seb sed see seg sem seo ser ses sga sgb sgd sge sgg sgm sgo sgr sgs sma smb smd sme smg smm smo smr sms soa sob sod soe sog som soo sor sos sr- sra srb srd sre srg srm sro srr srs ss- ssa ssb ssd sse ssg ssm sso ssr sss