-al a-a a-b a-i aaa aab aad aae aai aal aan ab- aba abb abd abe abi abl abn ad- ada adb add ade adi adl adn aea aeb aed aee aei ael aen ai- aia aib aid aie aii ail ain al- ala alb ald ale ali all aln an- ana anb and ane ani anl ann baa bab bad bae bai bal ban bba bbb bbd bbe bbi bbl bbn bda bdb bdd bde bdi bdl be- bea beb bed bee bei bel ben bi- bia bib bid bie bii bil bin bla blb bld ble bli bll bln bna bnb bnd bne bni bnl bnn daa dab dad dae dai dal dan dba dbb dbd dbe dbi dbl dbn dda ddb ddd dde ddi ddl ddn de- dea deb ded dee dei del den di- dia dib did die dii dil din dl- dla dlb dld dle dli dll dna dnb dnd dne dni dnl dnn eaa eab ead eae eai eal ean eba ebb ebd ebe ebi ebl ebn ed- eda edb edd ede edi edl edn eea eeb eed eee eel een eia eib eid eie eii eil ein ela elb eld ele eli ell eln en- ena enb end ene eni enl enn i-d ia- iaa iab iad iae iai ial ian iba ibb ibd ibe ibi ibl ibn ida idb idd ide idi idl idn ie- iea ied iee iei iel ien iia iib iid iie iii iil iin il- ila ilb ild ile ili ill iln in- ina inb ind ine ini inl inn la- laa lab lad lae lai lal lan lba lbb lbd lbe lbi lbl lda ldb ldd lde ldi ldl ldn lea leb led lee lei lel len lia lib lid lie lii lil lin lla llb lld lle lli lll lln lna lnb lnd lne lni lnl lnn n-i naa nab nad nae nai nal nan nba nbb nbd nbe nbi nbl nbn nda ndb ndd nde ndi ndl ndn ne- nea neb ned nee nei nel nen nia nib nid nie nii nil nin nla nlb nld nle nli nll nln nna nnb nne nni nnl nnn