b-u bbb bbe bbi bbk bbl bbu be- beb bee bei bek bel beu bi- bib bie bii bik bil biu bkb bke bkk bkl blb ble bli blk bll blu bub bue bui buk bul buu ebb ebe ebi ebk ebl ebu eeb eee eek eel eib eie eii eik eil eiu ekb eke eki ekl eku elb ele eli elk ell elu eu- eub eue eui eul ibb ibe ibi ibk ibl ibu ie- iee iei iek iel iib iie iii iil iiu ikb ike iki ikk ikl iku il- ilb ile ili ilk ill ilu iu- iub iue iui kbb kbe kbi kbk kbl kbu ke- keb kee kei kek kel kib kie kii kik kil kiu kkb kke kki kkk kkl kku kl- klb kli klu kub kue kui kuk kul kuu lbb lbe lbi lbk lbl lbu leb lee lei lek lel leu lib lie lii lik lil liu lkb lkl llb lle lli llk lll llu lub lue lui luk lul luu ubb ube ubi ubk ubl ubu ueb uee uei uel uib uie uii uil uiu ukb uke uki ukk ukl uku ulb ule uli ulk ull ulu uue uuu