b-u bbb bbe bbg bbi bbk bbl bbu be- beb bee beg bei bek bel beu bgb bge bgg bgi bgk bgl bgu bi- bib bie big bii bik bil biu bkb bke bkg bkk bkl blb ble blg bli blk bll blu bub bue bug bui buk bul buu ebb ebe ebg ebi ebk ebl ebu eeb eee eeg eek eel egb ege egg egi egl egu eib eie eig eii eik eil eiu ekb eke ekg eki ekl eku elb ele elg eli elk ell elu eu- eub eue eug eui eul gbe gbg gbi gbk gbl gbu ge- geb gee geg gei gek gel geu ggb ggg ggi ggu gib gie gig gii gik gil giu gkb glb gle glg gli glk gll glu gu- gub gue gug gui guk gul guu ibb ibe ibg ibi ibk ibl ibu ie- iee ieg iei iek iel igb ige igg igi igk igl igu iib iie iii iil iiu ikb ike iki ikk ikl iku il- ilb ile ilg ili ilk ill ilu iu- iub iue iug iui kbb kbe kbi kbk kbl kbu ke- keb kee keg kei kek kel kgb kgi kgl kgu kib kie kig kii kik kil kiu kkb kke kki kkk kkl kku kl- klb klg kli klu kub kue kug kui kuk kul kuu lbb lbe lbg lbi lbk lbl lbu leb lee leg lei lek lel leu lgb lge lgg lgi lgk lgl lgu lib lie lig lii lik lil liu lkb lkg lkl llb lle llg lli llk lll llu lub lue lug lui luk lul luu ubb ube ubg ubi ubk ubl ubu ueb uee ueg uei uel ugb uge ugg ugi ugk ugl ugu uib uie uig uii uil uiu ukb uke uki ukk ukl uku ulb ule ulg uli ulk ull ulu uue uug uuu