-ol bbb bbe bbg bbk bbl bbo be- beb bee beg bek bel beo bgb bge bgg bgk bgl bgo bkb bke bkg bkk bkl bko blb ble blg blk bll blo bob boe bog bok bol boo ebb ebe ebg ebk ebl ebo eeb eee eeg eek eel eeo egb ege egg egl ego ekb eke ekg ekl eko elb ele elg elk ell elo eo- eob eoe eog eok eol eoo gbe gbg gbk gbl gbo ge- geb gee geg gek gel geo ggb ggg ggo gkb gko glb gle glg glk gll glo gob goe gog gok gol goo kbb kbe kbk kbl kbo ke- keb kee keg kek kel keo kgb kgl kgo kkb kke kkk kkl kl- klb klg klo kob koe kog kok kol koo lbb lbe lbg lbk lbl lbo leb lee leg lek lel leo lgb lge lgg lgk lgl lgo lkb lkg lkl llb lle llg llk lll llo lob loe log lok lol loo ob- obb obe obg obk obl obo oeb oee oeg oel oeo oge ogg ogl ogo okb oke okg okk okl oko olb ole olg olk oll olo oo- oob oog ook ool ooo