b-u bbb bbe bbi bbk bbl bbu be- beb bee bei bek bel beu bez bi- bib bie bii bik bil biu biz bkb bke bkk bkl blb ble bli blk bll blu blz bub bue bui buk bul buu buz bze bzu bzz 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 elz eu- eub eue eui eul eze ezz ibb ibe ibi ibk ibl ibu ibz ie- iee iei iek iel iib iie iii iil iiu ikb ike iki ikk ikl iku il- ilb ile ili ilk ill ilu ilz iu- iub iue iui iuz ize izi izu izz k-z kbb kbe kbi kbk kbl kbu kbz ke- keb kee kei kek kel kez kib kie kii kik kil kiu kiz kkb kke kki kkk kkl kku kl- klb kli klu klz kub kue kui kuk kul kuu lbb lbe lbi lbk lbl lbu leb lee lei lek lel leu lez lib lie lii lik lil liu liz lkb lkl llb lle lli llk lll llu llz lub lue lui luk lul luu luz lzi lzu ubb ube ubi ubk ubl ubu ueb uee uei uel uib uie uii uil uiu ukb uke uki ukk ukl uku ukz ulb ule uli ulk ull ulu uue uuu uzb uzi uzu zbb zbl zeb zee zek zel zez zib zie zik zil ziz zub zui zuk zul zuz zzz