-ol bbb bbg bbi bbl bbo bbs bgb bgg bgi bgl bgo bgs bgz bi- bib big bii bil bio bis biz blb blg bli bll blo bls blz bob bog boi bol boo bos boz bsb bsg bsi bsl bso bss bzo bzs bzz gbg gbi gbl gbo gbs gbz ggb ggg ggi ggo ggs ggz gib gig gii gil gio gis giz glb glg gli gll glo gls glz gob gog goi gol goo gos goz gsb gsg gsi gsl gso gss gzo ibb ibg ibi ibl ibo ibs ibz igb igg igi igl igo igs iib iii iil iio iis il- ilb ilg ili ill ilo ils ilz io- iob iog ioi iol ioo ios is- isb isg isi isl iso iss izi izo izz lbb lbg lbi lbl lbo lbs lgb lgg lgi lgl lgo lgs lib lig lii lil lio lis liz llb llg lli lll llo lls llz lob log loi lol loo los loz lsb lsg lsi lsl lso lss lsz lzi lzo lzs o-i ob- obb obg obi obl obo obs ogg ogi ogl ogo ogs oib oii oil oio ois oiz olb olg oli oll olo ols oo- oob oog ooi ool ooo oos os- osb osg osi osl oso oss ozo ozs ozz sbb sbg sbi sbl sbo sbs sgb sgg sgi sgl sgo sgs sib sig sii sil sio sis slb slg sli sll slo sls sob sog soi sol soo sos soz ss- ssb ssg ssi ssl sso sss ssz szi szl z-g zbb zbl zbs zgb zgg zgi zgs zib zig zil zio zis ziz zo- zob zog zoi zol zoo zos zsg zsi zsl zsz zzs zzz