-ol bbb bbd bbg bbl bbo bbr bbs bdb bdd bdg bdl bdo bdr bds bgb bgd bgg bgl bgo bgr bgs blb bld blg bll blo blr bls bob bod bog bol boo bor bos brb brd brg brl bro brr brs bsb bsd bsg bsl bso bsr bss dbb dbd dbg dbl dbo dbr dbs ddb ddd ddg ddl ddo ddr dds dgd dgg dgl dgr dgs dl- dlb dld dlg dll dlo dlr dls dob dod dog dol doo dor dos drb drd drg drl dro drr drs dsb dsd dsg dsl dso dsr dss g-d gbd gbg gbl gbo gbr gbs gdb gdd gdl gdo gdr gds ggb ggd ggg ggo ggr ggs glb gld glg gll glo glr gls gob god gog gol goo gor gos grb grd grg grl gro grr grs gsb gsd gsg gsl gso gsr gss lbb lbd lbg lbl lbo lbr lbs ldb ldd ldg ldl ldo ldr lds lgb lgd lgg lgl lgo lgr lgs llb lld llg lll llo llr lls lob lod log lol loo lor los lrb lrd lrg lro lrr lrs lsb lsd lsg lsl lso lsr lss ob- obb obd obg obl obo obr obs odb odd odg odl odo odr ods ogd ogg ogl ogo ogs olb old olg oll olo ols oo- oob ood oog ool ooo oor oos or- orb ord org orl oro orr ors os- osb osd osg osl oso osr oss rbb rbd rbg rbl rbo rbr rbs rdb rdd rdg rdl rdo rdr rds rgb rgd rgg rgo rgr rgs rld rlg rll rlo rlr rls rob rod rog rol roo ror ros rrb rrd rrg rrl rrr rrs rsb rsd rsg rsl rso rsr rss sbb sbd sbg sbl sbo sbr sbs sdb sdd sdg sdl sdo sdr sds sgb sgd sgg sgl sgo sgr sgs slb sld slg sll slo slr sls sob sod sog sol soo sor sos sr- srb srd srg srl sro srr srs ss- ssb ssd ssg ssl sso ssr sss