-ol bbb bbe bbg bbi bbl bbo be- beb bee beg bei bel beo bez bgb bge bgg bgi bgl bgo bgz bi- bib bie big bii bil bio biz blb ble blg bli bll blo blz bob boe bog boi bol boo boz bze bzo bzz 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 elz eo- eob eoe eog eoi eol eoo eze ezo ezz gbe gbg gbi gbl gbo gbz ge- geb gee geg gei gel geo gez ggb ggg ggi ggo ggz gib gie gig gii gil gio giz glb gle glg gli gll glo glz gob goe gog goi gol goo goz gzo ibb ibe ibg ibi ibl ibo ibz ie- iee ieg iei iel igb ige igg igi igl igo iib iie iii iil iio il- ilb ile ilg ili ill ilo ilz io- iob ioe iog ioi iol ioo ize izi izo izz lbb lbe lbg lbi lbl lbo leb lee leg lei lel leo lez lgb lge lgg lgi lgl lgo lib lie lig lii lil lio liz llb lle llg lli lll llo llz lob loe log loi lol loo loz lzi lzo 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 oiz olb ole olg oli oll olo oo- oob oog ooi ool ooo oze ozo ozz z-g zbb zbl zeb zee zel zeo zez zgb zgg zgi zib zie zig zil zio ziz zo- zob zoe zog zoi zol zoo zzz