-ol bbb bbe bbg bbi bbl bbo be- beb bee beg bei bel beo bgb bge bgg bgi bgl bgo bi- bib bie big bii bil bio blb ble blg bli bll blo bob boe bog boi bol boo ebb ebe ebg ebi ebl ebo eeb eee eeg eel eeo egb ege egg egi egl ego eib eie eig eii eil eio elb ele elg eli ell elo eo- eob eoe eog eoi eol eoo gbe gbg gbi gbl gbo ge- geb gee geg gei gel geo ggb ggg ggi ggo gib gie gig gii gil gio glb gle glg gli gll glo gob goe gog goi gol goo ibb ibe ibg ibi ibl ibo ie- iee ieg iei iel igb ige igg igi igl igo iib iie iii iil iio il- ilb ile ilg ili ill ilo io- iob ioe iog ioi iol ioo lbb lbe lbg lbi lbl lbo leb lee leg lei lel leo lgb lge lgg lgi lgl lgo lib lie lig lii lil lio llb lle llg lli lll llo lob loe log loi lol loo o-i ob- obb obe obg obi obl obo oeb oee oeg oei oel oeo oge ogg ogi ogl ogo oib oie oii oil oio olb ole olg oli oll olo oo- oob oog ooi ool ooo