a-a a-b a-i aaa aab aad aai aak aan ab- aba abb abd abi abk abn ad- ada adb add adi adk adn ai- aia aib aid aii aik ain aka akb akd aki akk akn an- ana anb and ani ank ann baa bab bad bai bak ban bba bbb bbd bbi bbk bbn bda bdb bdd bdi bdk bi- bia bib bid bii bik bin bka bkb bkk bkn bna bnb bnd bni bnk bnn daa dab dad dai dak dan dba dbb dbd dbi dbk dbn dda ddb ddd ddi ddk ddn di- dia dib did dii dik din dka dkb dki dkk dna dnb dnd dni dnk dnn i-d ia- iaa iab iad iai ian iba ibb ibd ibi ibk ibn ida idb idd idi idk idn iia iib iid iii iin ika ikb iki ikk in- ina inb ind ini ink inn ka- kaa kab kad kai kak kan kba kbb kbd kbi kbk kbn kda kdb kdk kia kib kid kii kik kin kkb kki kkk kkn kn- kna knd kni knk knn n-i naa nab nad nai nak nan nba nbb nbd nbi nbk nbn nda ndb ndd ndi ndk ndn nia nib nid nii nik nin nka nki nkk nkn nna nnb nni nnk nnn