-ol bbb bbe bbg bbi bbk bbl bbo be- beb bee beg bei bek bel beo bgb bge bgg bgi bgk bgl bgo bi- bib bie big bii bik bil bio bkb bke bkg bkk bkl bko blb ble blg bli blk bll blo bob boe bog boi bok bol boo ebb ebe ebg ebi ebk ebl ebo eeb eee eeg eek eel eeo egb ege egg egi egl ego eib eie eig eii eik eil eio ekb eke ekg eki ekl eko elb ele elg eli elk ell elo eo- eob eoe eog eoi eok eol eoo gbe gbg gbi gbk gbl gbo ge- geb gee geg gei gek gel geo ggb ggg ggi ggo gib gie gig gii gik gil gio gkb gko glb gle glg gli glk gll glo gob goe gog goi gok gol goo ibb ibe ibg ibi ibk ibl ibo ie- iee ieg iei iek iel igb ige igg igi igk igl igo iib iie iii iil iio ikb ike iki ikk ikl iko il- ilb ile ilg ili ilk ill ilo io- iob ioe iog ioi iol ioo kbb kbe kbi kbk kbl kbo ke- keb kee keg kei kek kel keo kgb kgi kgl kgo kib kie kig kii kik kil kio kkb kke kki kkk kkl kl- klb klg kli klo kob koe kog koi kok kol koo lbb lbe lbg lbi lbk lbl lbo leb lee leg lei lek lel leo lgb lge lgg lgi lgk lgl lgo lib lie lig lii lik lil lio lkb lkg lkl llb lle llg lli llk lll llo lob loe log loi lok lol loo o-i ob- obb obe obg obi obk obl obo oeb oee oeg oei oel oeo oge ogg ogi ogl ogo oib oie oii oik oil oio okb oke okg oki okk okl oko olb ole olg oli olk oll olo oo- oob oog ooi ook ool ooo