bbb bbd bbg bbk bbo bbr bbs bdb bdd bdg bdk bdo bdr bds bgb bgd bgg bgk bgo bgr bgs bkb bkg bkk bko bkr bks bob bod bog bok boo bor bos brb brd brg brk bro brr brs bsb bsd bsg bsk bso bsr bss dbb dbd dbg dbk dbo dbr dbs ddb ddd ddg ddk ddo ddr dds dgd dgg dgk dgr dgs dkb dkg dkk dko dkr dks dob dod dog dok doo dor dos drb drd drg drk dro drr drs dsb dsd dsg dsk dso dsr dss g-d gbd gbg gbk gbo gbr gbs gdb gdd gdk gdo gdr gds ggb ggd ggg ggo ggr ggs gkb gkd gko gks gob god gog gok goo gor gos grb grd grg grk gro grr grs gsb gsd gsg gsk gso gsr gss kbb kbd kbk kbo kbr kbs kdb kdg kdk kdo kdr kds kgb kgd kgo kgs kkb kkk kkr kks kob kod kog kok koo kor kos krd krg krk kro krr krs ksb ksd ksg ksk kso ksr kss ob- obb obd obg obk obo obr obs odb odd odg odo odr ods ogd ogg ogo ogs okb okd okg okk oko okr oks oo- oob ood oog ook ooo oor oos or- orb ord org ork oro orr ors os- osb osd osg osk oso osr oss rbb rbd rbg rbk rbo rbr rbs rdb rdd rdg rdo rdr rds rgb rgd rgg rgk rgo rgr rgs rkb rkg rkk rko rks rob rod rog rok roo ror ros rrb rrd rrg rrk rrr rrs rsb rsd rsg rsk rso rsr rss sbb sbd sbg sbk sbo sbr sbs sdb sdd sdg sdk sdo sdr sds sgb sgd sgg sgk sgo sgr sgs sk- skb skd skg skk sko skr sks sob sod sog sok soo sor sos sr- srb srd srg srk sro srr srs ss- ssb ssd ssg ssk sso ssr sss