-er bbb bbd bbe bbg bbm bbo bbr bdb bdd bde bdg bdm bdo bdr be- beb bed bee beg bem beo ber bgb bgd bge bgg bgm bgo bgr bmb bmd bme bmg bmm bmo bmr bob bod boe bog bom boo bor brb brd bre brg brm bro brr dbb dbd dbe dbg dbm dbo dbr ddb ddd dde ddg ddm ddo ddr de- deb ded dee deg dem deo der dgd dge dgg dgm dgr dmb dmd dme dmg dmm dmo dmr dob dod doe dog dom doo dor drb drd dre drg drm dro drr ebb ebd ebe ebg ebm ebo ebr ed- edb edd ede edg edm edo edr eeb eed eee eeg eem eeo eer egb egd ege egg egm ego egr em- emb emd eme emg emm emo emr eo- eob eod eoe eog eom eoo eor erb erd ere erg erm ero err g-d gbd gbe gbg gbm gbo gbr gdb gdd gde gdm gdo gdr ge- geb ged gee geg gem geo ger ggb ggd ggg ggm ggo ggr gmb gmd gme gmg gmm gmo gmr gob god goe gog gom goo gor grb grd gre grg grm gro grr m-o m-r mbb mbd mbe mbg mbm mbo mbr mdb mdd mde mdg mdm mdo mdr meb med mee meg mem meo mer mgb mgd mge mgm mgo mgr mmb mmd mme mmg mmm mmo mmr mob mod moe mog mom moo mor mrb mrd mre mrg mrm mro mrr ob- obb obd obe obg obm obo obr odb odd ode odg odm odo odr oeb oed oee oeg oem oeo oer ogd oge ogg ogo om- omb omd ome omg omm omo omr oo- oob ood oog oom ooo oor or- orb ord ore org orm oro orr rbb rbd rbe rbg rbm rbo rbr rdb rdd rde rdg rdm rdo rdr re- reb red ree reg rem reo rer rgb rgd rge rgg rgo rgr rmb rmd rme rmg rmm rmo rmr rob rod roe rog rom roo ror rrb rrd rrg rrm rrr