-ol b-u bbb bbd bbf bbg bbl bbo bbu bdb bdd bdf bdg bdl bdo bdu bfb bfd bff bfg bfl bfo bfu bgb bgd bgf bgg bgl bgo bgu blb bld blf blg bll blo blu bob bod bof bog bol boo bou bub bud buf bug bul buo buu dbb dbd dbf dbg dbl dbo dbu ddb ddd ddf ddg ddl ddo ddu dfb dfd dff dfg dfl dfo dfu dgd dgf dgg dgl dgu dl- dlb dld dlf dlg dll dlo dlu dob dod dof dog dol doo dou dub dud duf dug dul duo fbb fbd fbf fbg fbl fbo fbu fdb fdd fdf fdg fdl fdo fdu ffd fff ffg ffl ffo ffu fgb fgd fgf fgg fgl flb fld flf flg fll flo flu fob fof fog fol foo fou fub fud fuf fug ful fuo fuu g-d gbd gbf gbg gbl gbo gbu gdb gdd gdf gdl gdo gdu gfb gfd gff gfl gfo ggb ggd ggg ggo ggu glb gld glf glg gll glo glu gob god gof gog gol goo gou gu- gub gud guf gug gul guo guu lbb lbd lbf lbg lbl lbo lbu ldb ldd ldf ldg ldl ldo ldu lfb lfd lff lfg lfl lfo lfu lgb lgd lgf lgg lgl lgo lgu llb lld llf llg lll llo llu lob lod lof log lol loo lou lub lud luf lug lul luo luu ob- obb obd obf obg obl obo obu odb odd odf odg odl odo odu of- ofb ofd off ofg ofl ofo ofu ogd ogf ogg ogl ogo olb old olf olg oll olo olu oo- oob ood oof oog ool ooo ou- oud ouf oul ouo ubb ubf ubg ubl ubo ubu udb udd udf udg udl udo udu ufd uff ufg ufl ufo ufu ugb ugf ugg ugl ugo ugu ulb uld ulf ulg ull ulo ulu uob uod uog uol uoo uug uuu