-ol bbb bbe bbg bbi bbk bbl bbo bbt be- beb bee beg bei bek bel beo bet bgb bge bgg bgi bgk bgl bgo bgt bi- bib bie big bii bik bil bio bit bkb bke bkg bkk bkl bko bkt blb ble blg bli blk bll blo blt bob boe bog boi bok bol boo bot btb bte btg bti btk btl bto btt ebb ebe ebg ebi ebk ebl ebo ebt eeb eee eeg eek eel eeo eet egb ege egg egi egl ego egt eib eie eig eii eik eil eio eit ekb eke ekg eki ekl eko ekt elb ele elg eli elk ell elo elt eo- eob eoe eog eoi eok eol eoo eot etb ete etg eti etk etl eto ett gbe gbg gbi gbk gbl gbo gbt ge- geb gee geg gei gek gel geo get ggb ggg ggi ggo ggt gib gie gig gii gik gil gio git gkb gko gkt glb gle glg gli glk gll glo glt gob goe gog goi gok gol goo got gtb gte gtg gti gtk gtl gto gtt ibb ibe ibg ibi ibk ibl ibo ibt ie- iee ieg iei iek iel iet igb ige igg igi igk igl igo igt iib iie iii iil iio iit ikb ike iki ikk ikl iko ikt il- ilb ile ilg ili ilk ill ilo ilt io- iob ioe iog ioi iol ioo iot itb ite itg iti itk itl ito itt k-t kbb kbe kbi kbk kbl kbo ke- keb kee keg kei kek kel keo ket kgb kgi kgl kgo kib kie kig kii kik kil kio kit kkb kke kki kkk kkl kkt kl- klb klg kli klo klt kob koe kog koi kok kol koo kot ktb kte ktg ktk ktl kto ktt lbb lbe lbg lbi lbk lbl lbo lbt leb lee leg lei lek lel leo let lgb lge lgg lgi lgk lgl lgo lgt lib lie lig lii lik lil lio lit lkb lkg lkl lkt llb lle llg lli llk lll llo llt lob loe log loi lok lol loo lot ltb lte ltg lti ltk ltl lto ltt o-i ob- obb obe obg obi obk obl obo obt oeb oee oeg oei oel oeo oet oge ogg ogi ogl ogo ogt oib oie oii oik oil oio oit okb oke okg oki okk okl oko olb ole olg oli olk oll olo olt oo- oob oog ooi ook ool ooo oot ot- otb ote otg oti otk otl oto ott tbb tbe tbg tbi tbk tbl tbo tbt te- teb tee teg tei tek tel teo tet tgb tge tgg tgi tgk tgl tgo tgt tib tie tig tii tik til tio tit tkb tke tkg tkk tkl tko tkt tle tlg tli tlk tll tlo tlt to- tob toe tog toi tok tol too tot ttb tte ttg tti ttk ttl tto ttt