a-a a-b a-i aaa aab aai aak aan aay ab- aba abb abi abk abn aby ai- aia aib aii aik ain aiy aka akb aki akk akn an- ana anb ani ank ann any ay- aya ayi ayk ayn baa bab bai bak ban bay bba bbb bbi bbk bbn bby bi- bia bib bii bik bin biy bka bkb bkk bkn bna bnb bni bnk bnn by- bya byi byk byn ia- iaa iab iai ian iba ibb ibi ibk ibn iby iia iib iii iin ika ikb iki ikk in- ina inb ini ink inn iny iya iyy ka- kaa kab kai kak kan kay kba kbb kbi kbk kbn kia kib kii kik kin kkb kki kkk kkn kky kn- kna kni knk knn kya kyn n-i naa nab nai nak nan nay nba nbb nbi nbk nbn nia nib nii nik nin nka nki nkk nkn nky nna nnb nni nnk nnn nya nyk nyn nyy yaa yab yai yak yan yay ybi yby yii yin yka yki ykk ykn yna ynk ynn yny yyb yyy