-ol bbb bbe bbg bbi bbl bbo bbt be- beb bee beg bei bel beo bet bgb bge bgg bgi bgl bgo bgt bi- bib bie big bii bil bio bit blb ble blg bli bll blo blt bob boe bog boi bol boo bot btb bte btg bti btl bto btt ebb ebe ebg ebi ebl ebo ebt eeb eee eeg eel eeo eet egb ege egg egi egl ego egt eib eie eig eii eil eio eit elb ele elg eli ell elo elt eo- eob eoe eog eoi eol eoo eot etb ete etg eti etl eto ett gbe gbg gbi gbl gbo gbt ge- geb gee geg gei gel geo get ggb ggg ggi ggo ggt gib gie gig gii gil gio git glb gle glg gli gll glo glt gob goe gog goi gol goo got gtb gte gtg gti gtl gto gtt ibb ibe ibg ibi ibl ibo ibt ie- iee ieg iei iel iet igb ige igg igi igl igo igt iib iie iii iil iio iit il- ilb ile ilg ili ill ilo ilt io- iob ioe iog ioi iol ioo iot itb ite itg iti itl ito itt lbb lbe lbg lbi lbl lbo lbt leb lee leg lei lel leo let lgb lge lgg lgi lgl lgo lgt lib lie lig lii lil lio lit llb lle llg lli lll llo llt lob loe log loi lol loo lot ltb lte ltg lti ltl lto ltt o-i ob- obb obe obg obi obl obo obt oeb oee oeg oei oel oeo oet oge ogg ogi ogl ogo ogt oib oie oii oil oio oit olb ole olg oli oll olo olt oo- oob oog ooi ool ooo oot ot- otb ote otg oti otl oto ott tbb tbe tbg tbi tbl tbo tbt te- teb tee teg tei tel teo tet tgb tge tgg tgi tgl tgo tgt tib tie tig tii til tio tit tle tlg tli tll tlo tlt to- tob toe tog toi tol too tot ttb tte ttg tti ttl tto ttt