-al a-a a-b a-i aaa aab aae aai aak aal aan ab- aba abb abe abi abk abl abn aea aeb aee aei aek ael aen ai- aia aib aie aii aik ail ain aka akb ake aki akk akl akn al- ala alb ale ali alk all aln an- ana anb ane ani ank anl ann baa bab bae bai bak bal ban bba bbb bbe bbi bbk bbl bbn be- bea beb bee bei bek bel ben bi- bia bib bie bii bik bil bin bka bkb bke bkk bkl bkn bla blb ble bli blk bll bln bna bnb bne bni bnk bnl bnn eaa eab eae eai eak eal ean eba ebb ebe ebi ebk ebl ebn eea eeb eee eek eel een eia eib eie eii eik eil ein eka ekb eke eki ekl ela elb ele eli elk ell eln en- ena enb ene eni enk enl enn ia- iaa iab iae iai ial ian iba ibb ibe ibi ibk ibl ibn ie- iea iee iei iek iel ien iia iib iie iii iil iin ika ikb ike iki ikk ikl il- ila ilb ile ili ilk ill iln in- ina inb ine ini ink inl inn ka- kaa kab kae kai kak kal kan kba kbb kbe kbi kbk kbl kbn ke- kea keb kee kei kek kel ken kia kib kie kii kik kil kin kkb kke kki kkk kkl kkn kl- kla klb kli kn- kna kne kni knk knl knn la- laa lab lae lai lak lal lan lba lbb lbe lbi lbk lbl lea leb lee lei lek lel len lia lib lie lii lik lil lin lka lkb lkl lla llb lle lli llk lll lln lna lnb lne lni lnk lnl lnn n-i naa nab nae nai nak nal nan nba nbb nbe nbi nbk nbl nbn ne- nea neb nee nei nek nel nen nia nib nie nii nik nil nin nka nke nki nkk nkn nla nlb nle nli nlk nll nln nna nnb nne nni nnk nnl nnn