-ol bbb bbe bbg bbl bbo be- beb bee beg bel beo bgb bge bgg bgl bgo blb ble blg bll blo bob boe bog bol boo ebb ebe ebg ebl ebo eeb eee eeg eel eeo egb ege egg egl ego elb ele elg ell elo eo- eob eoe eog eol eoo gbe gbg gbl gbo ge- geb gee geg gel geo ggb ggg ggo glb gle glg gll glo gob goe gog gol goo lbb lbe lbg lbl lbo leb lee leg lel leo lgb lge lgg lgl lgo llb lle llg lll llo lob loe log lol loo ob- obb obe obg obl obo oeb oee oeg oel oeo oge ogg ogl ogo olb ole olg oll olo oo- oob oog ool ooo