-er bbb bbd bbe bbg bbm bbo bbr bbs bdb bdd bde bdg bdm bdo bdr bds be- beb bed bee beg bem beo ber bes bgb bgd bge bgg bgm bgo bgr bgs bmb bmd bme bmg bmm bmo bmr bms bob bod boe bog bom boo bor bos brb brd bre brg brm bro brr brs bsb bsd bse bsg bsm bso bsr bss dbb dbd dbe dbg dbm dbo dbr dbs ddb ddd dde ddg ddm ddo ddr dds de- deb ded dee deg dem deo der des dgd dge dgg dgm dgr dgs dmb dmd dme dmg dmm dmo dmr dms dob dod doe dog dom doo dor dos drb drd dre drg drm dro drr drs dsb dsd dse dsg dsm dso dsr dss ebb ebd ebe ebg ebm ebo ebr ebs ed- edb edd ede edg edm edo edr eds eeb eed eee eeg eem eeo eer ees egb egd ege egg egm ego egr egs em- emb emd eme emg emm emo emr ems eo- eob eod eoe eog eom eoo eor eos erb erd ere erg erm ero err ers es- esb esd ese esg esm eso esr ess g-d gbd gbe gbg gbm gbo gbr gbs gdb gdd gde gdm gdo gdr gds ge- geb ged gee geg gem geo ger ges ggb ggd ggg ggm ggo ggr ggs gmb gmd gme gmg gmm gmo gmr gms gob god goe gog gom goo gor gos grb grd gre grg grm gro grr grs gsb gsd gse gsg gsm gso gsr gss m-o m-r mbb mbd mbe mbg mbm mbo mbr mbs mdb mdd mde mdg mdm mdo mdr mds meb med mee meg mem meo mer mes mgb mgd mge mgm mgo mgr mgs mmb mmd mme mmg mmm mmo mmr mms mob mod moe mog mom moo mor mos mrb mrd mre mrg mrm mro mrr mrs msb msd mse msg msm mso msr mss ob- obb obd obe obg obm obo obr obs odb odd ode odg odm odo odr ods oeb oed oee oeg oem oeo oer oes ogd oge ogg ogo ogs om- omb omd ome omg omm omo omr oms oo- oob ood oog oom ooo oor oos or- orb ord ore org orm oro orr ors os- osb osd ose osg osm oso osr oss rbb rbd rbe rbg rbm rbo rbr rbs rdb rdd rde rdg rdm rdo rdr rds re- reb red ree reg rem reo rer res rgb rgd rge rgg rgo rgr rgs rmb rmd rme rmg rmm rmo rmr rms rob rod roe rog rom roo ror ros rrb rrd rrg rrm rrr rrs rsb rsd rse rsg rsm rso rsr rss sbb sbd sbe sbg sbm sbo sbr sbs sdb sdd sde sdg sdm sdo sdr sds se- seb sed see seg sem seo ser ses sgb sgd sge sgg sgm sgo sgr sgs smb smd sme smg smm smo smr sms sob sod soe sog som soo sor sos sr- srb srd sre srg srm sro srr srs ss- ssb ssd sse ssg ssm sso ssr sss