-ol bbb bbg bbi bbk bbl bbn bbo bbs bgb bgg bgi bgk bgl bgn bgo bgs bi- bib big bii bik bil bin bio bis bkb bkg bkk bkl bkn bko bks blb blg bli blk bll bln blo bls bnb bng bni bnk bnl bnn bno bns bob bog boi bok bol bon boo bos bsb bsg bsi bsk bsl bsn bso bss gbg gbi gbk gbl gbn gbo gbs ggb ggg ggi ggn ggo ggs gib gig gii gik gil gin gio gis gkb gkn gko gks glb glg gli glk gll gln glo gls gnb gni gnl gnn gno gns gob gog goi gok gol gon goo gos gsb gsg gsi gsk gsl gsn gso gss ibb ibg ibi ibk ibl ibn ibo ibs igb igg igi igk igl ign igo igs iib iii iil iin iio iis ikb iki ikk ikl iko iks il- ilb ilg ili ilk ill iln ilo ils in- inb ing ini ink inl inn ino ins io- iob iog ioi iol ion ioo ios is- isb isg isi isk isl isn iso iss kbb kbi kbk kbl kbn kbo kbs kgb kgi kgl kgo kgs kib kig kii kik kil kin kio kis kkb kki kkk kkl kkn kks kl- klb klg kli klo kls kn- kng kni knk knl knn kno kob kog koi kok kol kon koo kos ksb ksg ksi ksk ksl ksn kso kss lbb lbg lbi lbk lbl lbo lbs lgb lgg lgi lgk lgl lgn lgo lgs lib lig lii lik lil lin lio lis lkb lkg lkl lks llb llg lli llk lll lln llo lls lnb lng lni lnk lnl lnn lno lns lob log loi lok lol lon loo los lsb lsg lsi lsk lsl lsn lso lss n-i nbb nbg nbi nbk nbl nbn nbo nbs ngb ngg ngi ngk ngl ngn ngo ngs nib nig nii nik nil nin nio nis nki nkk nkn nko nks nlb nlg nli nlk nll nln nlo nls nnb nng nni nnk nnl nnn nno nns no- nob nog noi nok nol non noo nos nsb nsg nsi nsk nsl nsn nso nss o-i ob- obb obg obi obk obl obn obo obs ogg ogi ogl ogn ogo ogs oib oii oik oil oin oio ois okb okg oki okk okl oko oks olb olg oli olk oll oln olo ols on- onb ong oni onk onl onn ono ons oo- oob oog ooi ook ool oon ooo oos os- osb osg osi osk osl osn oso oss sbb sbg sbi sbk sbl sbn sbo sbs sgb sgg sgi sgk sgl sgn sgo sgs sib sig sii sik sil sin sio sis sk- skb skg ski skk skl sko sks slb slg sli slk sll sln slo sls snb sng sni snk snl snn sno sns sob sog soi sok sol son soo sos ss- ssb ssg ssi ssk ssl ssn sso sss