-al a-a a-b a-i aaa aab aai aak aal aan ab- aba abb abi abk abl abn ai- aia aib aii aik ail ain aka akb aki akk akl akn al- ala alb ali alk all aln an- ana anb ani ank anl ann baa bab bai bak bal ban bba bbb bbi bbk bbl bbn bi- bia bib bii bik bil bin bka bkb bkk bkl bkn bla blb bli blk bll bln bna bnb bni bnk bnl bnn ia- iaa iab iai ial ian iba ibb ibi ibk ibl ibn iia iib iii iil iin ika ikb iki ikk ikl il- ila ilb ili ilk ill iln in- ina inb ini ink inl inn ka- kaa kab kai kak kal kan kba kbb kbi kbk kbl kbn kia kib kii kik kil kin kkb kki kkk kkl kkn kl- kla klb kli kn- kna kni knk knl knn la- laa lab lai lak lal lan lba lbb lbi lbk lbl lia lib lii lik lil lin lka lkb lkl lla llb lli llk lll lln lna lnb lni lnk lnl lnn n-i naa nab nai nak nal nan nba nbb nbi nbk nbl nbn nia nib nii nik nil nin nka nki nkk nkn nla nlb nli nlk nll nln nna nnb nni nnk nnl nnn