a-a a-b a-i aaa aab aai aak aan aav ab- aba abb abi abk abn abv ai- aia aib aii aik ain aiv aka akb aki akk akn akv an- ana anb ani ank ann anv av- ava avb avi avk avn baa bab bai bak ban bav bba bbb bbi bbk bbn bi- bia bib bii bik bin biv bka bkb bkk bkn bkv bna bnb bni bnk bnn bnv bva bvb bvi bvk bvn bvv i-v ia- iaa iab iai ian iav iba ibb ibi ibk ibn ibv iia iib iii iin ika ikb iki ikk ikv in- ina inb ini ink inn inv iva ivb ivi ivv ka- kaa kab kai kak kan kav kba kbb kbi kbk kbn kia kib kii kik kin kiv kkb kki kkk kkn kkv kn- kna kni knk knn kva kvb kvi kvk kvn kvv n-i naa nab nai nak nan nav nba nbb nbi nbk nbn nbv nia nib nii nik nin niv nka nki nkk nkn nna nnb nni nnk nnn nnv nva nvb nvi nvk nvn nvv v-a vaa vab vai vak van vav vba vbi vbk vbv vi- via vib vii vik vin viv vka vkb vn- vna vni vnv vva vvb vvi vvv