-al a-a a-b a-i aaa aab aai aal aan ab- aba abb abi abl abn ai- aia aib aii ail ain al- ala alb ali all aln an- ana anb ani anl ann baa bab bai bal ban bba bbb bbi bbl bbn bi- bia bib bii bil bin bla blb bli bll bln bna bnb bni bnl bnn ia- iaa iab iai ial ian iba ibb ibi ibl ibn iia iib iii iil iin il- ila ilb ili ill iln in- ina inb ini inl inn la- laa lab lai lal lan lba lbb lbi lbl lia lib lii lil lin lla llb lli lll lln lna lnb lni lnl lnn n-i naa nab nai nal nan nba nbb nbi nbl nbn nia nib nii nil nin nla nlb nli nll nln nna nnb nni nnl nnn