-al a-a a-b a-i aaa aab aae aai aal aan ab- aba abb abe abi abl abn aea aeb aee aei ael aen ai- aia aib aie aii ail ain al- ala alb ale ali all aln an- ana anb ane ani anl ann baa bab bae bai bal ban bba bbb bbe bbi bbl bbn be- bea beb bee bei bel ben bi- bia bib bie bii bil bin bla blb ble bli bll bln bna bnb bne bni bnl bnn eaa eab eae eai eal ean eba ebb ebe ebi ebl ebn eea eeb eee eel een eia eib eie eii eil ein ela elb ele eli ell eln en- ena enb ene eni enl enn ia- iaa iab iae iai ial ian iba ibb ibe ibi ibl ibn ie- iea iee iei iel ien iia iib iie iii iil iin il- ila ilb ile ili ill iln in- ina inb ine ini inl inn la- laa lab lae lai lal lan lba lbb lbe lbi lbl lea leb lee lei lel len lia lib lie lii lil lin lla llb lle lli lll lln lna lnb lne lni lnl lnn n-i naa nab nae nai nal nan nba nbb nbe nbi nbl nbn ne- nea neb nee nei nel nen nia nib nie nii nil nin nla nlb nle nli nll nln nna nnb nne nni nnl nnn